Presentation on theme: "OBSTETRICAL EMERGENCIES"— Presentation transcript:
1OBSTETRICAL EMERGENCIES Kathleen Murray, CNM, MN, RN Larry Whorley, BSN
2ObjectivesDefine and discuss nursing management for the following emergencies:vasa previa, abruption, rupture, amniotic fluid embolus, DIC, and prolapsed cord.Discuss the nursing management of a precipitous labor and delivery.
3True Obstetric Emergencies Vasa PreviaPlacental AbruptionUterine RuptureAmniotic Fluid EmbolusDICProlapsed CordPrecipitous DeliveryWhat should the L&D nurse do in these critical situations?Important to know what each of these are, and the emergency steps the nursing team should perform to care for patient. In some cases, your care can turn an emergency situation into a healthy outcome for mom and baby.
4Placenta Previa Poor site chosen by zygote at implantation Can be complete, partial, or marginalEasy to see on US, often diagnosed 1st trimester and followed thru pregnancy, spotting is common. Not dangerous until labor and dilation of cervix. Is not usually an emergency, not covered today, but wanted to remind you of what it is. Now, let’s talk about a related problem that IS an emergency.
5Vasa Previa Developmental disorder of the umbilical cord Most dangerous type of velamentous insertionVelamentous insertion= umbilical vessels run from umbilical cord, between the amnion and chorion, then into placentaASK: What does “vasa previa” mean? Answer: umbilical vessels across cervix in front of baby. Starts with velamentous insertion. Velamentous vessels are unprotected, no cord & Wharton’s jelly to cushion them from compression or tearing.
6Velamentous Insertion Associated with earlier placenta previa which moved higherPhoto is Velamentous insertion….Notice the naked unprotected vessels traveling across the membranes before they reach the umbilical cord. This is called a velamentous insertion of the cord. If the membranes rupture in this spot, the baby will bleed out in a few minutes. If the placenta and cord insertion are all up in the fundus, it will probably turn out fine. But if the vessels are across the cervix, (which would be a ‘vasa previa’), a rupture of membranes will be fatal for baby.
7In this picture, vessels leave placenta, travel thru sac across cervix, before going into the cord, which is not shown. The vessels are in front of the presenting part, with no cord or Wharton’s jelly to protect them from pressure or from rupture.
8Incidence Occurs 1 in 3000 births More likely in low-lying placenta (smoker, prior C/S, preg. with multiples, assisted conception)No danger to the motherFetal mortality %ASK: Why do some placentas end up as previa’s? Answer: Prior c/s scar makes blastocyst hunt for decent place to implant, twins have to compete for space for placenta’s, smokers have damaged vessels in the uterus, not as many good implantation sites. . ASK: why do you think the low-lying placenta makes a vasa previa happen? The answer is coming up.
9Etiology Blastocyst implants into endometrium Cord is central at first Placenta erodes at bottom edge if in lower segmentNew growth at top edge toward fundusVessels can’t migrate, are left behindUpper uterus is more vascular, better blood supply. When you have a low placenta: Like a plant leaning toward sunlight, placenta grows upward, bottom disintegrates. Leaves cord in place, which gradually is shifted from center to edge. If extreme, placenta leaves vessels trailing past edge. Velamentous insertion of vessels is one step further than a marginal insertion of cord.
10This photo shows 1)a bi-lobed placenta, 2)marginal insertion of cord, and 3)velamentous vessels. Velamentous insertions occur often when the placenta is bi-lobed, or has a succenturiate lobe (satellite lobe of main placenta).(Lijoi, 2003)
11Diagnosis Antepartum Difficult to diagnosis Transvaginal sonography with color doppler(Photo of this US next slide). All women with known bi-lobed placentas, and probably those with twins, etc. should be screened for vasa previa. Vasa previa MUST be discovered before ROM so C-section can be done to save the fetus.
12Color doppler US involves assigning colors to different blood flows on the US screen, so they can see mom vs. baby, and vein vs. arterial flow, to be able to see where the cord and the vessels are on the screen.
13Signs and Symptoms Intrapartum Umbilical vessels might be felt on VE FHR deceleration with VEHeavy show with fetal tachycardiaVaginal bleeding at ROM, sudden onsetof fetal distress.How will you discover vasa previa during labor? Usually no warning.
14Vasa Previa Obstetrical emergency Catastrophic implications for the fetusFetal outcome based on quick diagnosis, an emergency cesarean and infant resuscitation capabilityEven with a crash C-section, it would be hard to be fast enough.
15Treatment Antepartum Diagnosis Intrapartum Scheduled Cesarean Section Emergency Cesarean SectionPrepare for full infant resuscitationAll women with known bi-lobed placentas, and probably those with twins, etc. should be screened for vasa previa. If your patient tells you she had a placenta previa earlier in pregnancy, talk to the provider about whether the US looked for velamentous vessels.
16Now lets look at abruption, which is a different placental problem Now lets look at abruption, which is a different placental problem. Look at this placenta, with it’s very-healthy attachment to the uterus. ASK: How does the placenta attach? Answer: villi from the placenta, like the hooks in velcro, with spiral arteries in the mom’s endometrium providing a good flow of oxygenated blood in the millions of tiny special capillaries.
17Abruptio PlacentaeDefinition: premature separation of the placenta (part or all) from the uterusUsually after 20 weeksPremature separation of the placenta accounts for about 15% of all neonatal deaths.(Neonatal causes of death: 50% due to preterm birth; other causes include intrauterine hypoxia and asphyxia).
18Classification of Detachment Grade 0 – approx 250ml (<10% surface)Grade ml blood(10-20%)Grade 2 – cc (20-50%)Grade 3 – >1000cc (>50%)Approximately half of abruptions are grade 0 or 1 (Gilbert & Harmon, 2003). (hold up placenta-cord model, show edge folded up) This is a small part of the placenta involved, symptoms are mild. Most babies and placentas can compensate for small abruption, but Grade 2 and 3 is when baby’s life really threatened. Grade 3 involves more than ½ of the placenta, and DIC will always happen then also.Who is bleeding??? Mom, mainly. But, baby gets less oxygen because of disruption of placental attachment.
191st picture shows partial abruption, with bleeding evident 1st picture shows partial abruption, with bleeding evident. Most abruptions are from margin, and have some vag. bleeding, to warn us, fortunately. The 2nd and 3rd pictures show silent (hidden) abruption.
20Incidence Occurs in 1/120 deliveries 12% of stillbirths R/T abruption 1 in 8 recurrence rateAbruption happens more often than we realize, about 1 in 120 deliveries. ( Frequency of abruption causing death is 1 in 1420).Abruptio placentae has become the leading known cause of fetal death.Even if the infant survives, there may be adverse sequelae—14% are later found to have significant neurological deficits within the first year of life.
21EtiologyProbably necrosis and ruptured spiral arterioles in endometrium, from:HTN (chronic, gestational HTN, Pre-eclampsia)SmokingBlunt trauma to the abdomenGrand-multiparityETOH, cocaine, caffeinePrior abruptionUterine abnormalities, fibroidsPreterm Premature ROMBy far the most commonly associated condition is some type of hypertension. 50% of abruptions severe enough to cause death are associated with hypertension.Hypertensive women were also more likely to suffer a more severe abruption.Smoking causes 40% of all abruptions: vasoconstriction of spiral arterioles,& necrosis. Is Dose – dependent.Cocaine: vasoconstriction, high BPPrior history: hx 1 abruption = 10% chance repeat, hx 2 abruptions = 25% chance repeat.Uterine abnormalities such as bicornate or didelphys (double) uterus causes abnormal surface to attach to.Uterine fibroids (leiomyoma) located behind the placenta predispose to abruption.Short cord, sudden uterine decompression as in second twin or in polyhydramnios may be additional factors. 5% risk abruption after preterm PROM.
22Clinical Manifestations 80% have vaginal bleedingHard or rigid uterine toneUterine/abdominal/back pain 50%Signs of silent bleeding – shock, oliguriaNon-reassuring FHRLow-amp/high frequency contractionsCouvelaire uterusBleeding: Port wine-colored amniotic fluid is an indicator of a premature separation of the placenta. Bldg dark because has had time to begin clotting. Remember: there is concealed bleeding in 20% of cases.Shock: increase pulse, decrease BP, pale, clammy skin, N & VUterine little, frequent irritable-type contractions, hypertonus may be presentCouvelaire uterus—The condition in which blood is forced into the uterine musculature. Causes pain, rigidity, irritability. This acute condition may be associated with DIC (disseminated intravascular coagulation) and may require a hysterectomy. Placental fragments (thromboplastin) forced into maternal circulation, causing widespread little clots in mom’s body. Will talk more about DIC later.FHR—Decreased variability, late decelerations, baseline changes, sinusoidal pattern. Fetal death occurs when 50% or more of blood volume from placenta is lostOther symptoms: anxiety, fear, confusion
23Lab Findings Decreased H&H Decreased coag factors Presence of fetal-to-maternal bleeding (detected by Kleihauer-Betke test)APT test (a alkaline denaturation tests)—done on blood collected on chux to determine if it is fetal or maternal. If fetal, it means the blood is coming from the placenta abruption.Coagulation tests: (PT, PTT, platelet count, D-dimer (may be 2 times higher than normal), fibrinogen, FSP) because retroplacental clot uses up clotting factorsKleihauer-Betke tests for fetal cells in maternal serum. Very small volumes of blood cells commonly escape from the fetal intravascular compartment across the placental barrier into the maternal intervillous space. Large hemorrhages are uncommon. 30 ml of fetal blood into maternal circulation would be large.This test often done in blood bank and can take one technician 1-2 hours to complete it. Answer sometimes confirms Dx after delivery has already happened, might help nursery determine whether to give baby a transfusion, might also help determine Rhogam dose for mom if she is Rh neg.
24Diagnosis and Medical Management Patient historyPhysical examLab studiesUltrasoundTreatment depends on severity of abruptionExam of placenta at delivery confirmsHistory:BP/trauma/pain/bldg,etc. PE including palpation of uterus for pain and rigid tone. Labs (H&H,clot studies, Klei-hauer-Betke).Ultrasound can be unreliable; only about 25-30% of cases confirmed by identifying a intrauterine clot. It is not usually used for diagnosis.Abruptions are classified as marginal (only the margin of the placenta is involved), partial, or total (complete).Exam at del, look for adherent clot. Placenta to pathology for study.
25Interventions Establish IV line(s) 18 gauge or larger Obtain labs and Type and crossmatch 2-4 units packed red blood cellsRapidly administer parenteral crystalloids or colloidsAvoid vaginal examinationsO2 per face mask at 10 L/minFoley catheterPrepare for emergent C-SectionMonitor Maternal V. S. / FHR, verify fetal lifePrepare for potential DIC (happens 20% of abruptions)Crystalloids or colloids: Ringer’s lactate, or Plasmanate if in shock.Fetal scalp electrode can carry mom’s HR thru dead fetus, verify whose HR you are monitoring!!! ASK: how do you know whose HR you’ve got?
26Nursing Care Plan Maternal stabilization Maintain urine output of mL/hourExplain status and answer questions straightforwardly to allay anxietyPosition for comfortAnticipate grievingFluid and blood might be given to maintain hct of 30%.
27Only go thru next slide with them (need to un-hide it) if not going to play Kathleen’s game after covering Uterine Rupture
28Compare and Contrast Abruptio Placentae Placenta Previa Blood ColorPainUterine TendernessUterine ToneShockDICUltrasoundFetal DistressUsual Characteristics of Placenta Previa vs. Abruptio Placentae: Exercise for studentsAbruptio Placentae Placenta PreviaBlood: dark red, clots bright redPain: painful—constant painless (unless in labor)Tenderness:usually present absentTone: increased, may feel tense, rigid normalShock: frequent, esp. with severe grades uncommonDIC: frequent, esp. with severe grades very rareU/S: appearance of clots behind placenta determines placenta may not be clots; actual clots hard to locationidentifyF/distress: frequent, esp. with severe grades rare, unless maternal shock or significantfetal blood lossSigns and symptoms may vary from the above classical characteristics.
29Uterine RuptureActual separation of the uterine myometrium, with ROM and extrusion of the fetus into the peritoneal cavity.Uterine dehiscence: a partial separation of the old scar; membranes intactThe terms uterine rupture and uterine dehiscence are sometimes used interchangeably in literature.In dehiscence the fetus remains inside the uterus, the scar is not broken all the way thru.. Excessive bleeding usually occurs with uterine rupture, whereas bleeding is generally minimal with dehiscence (scar tissue does not have blood vessels).
30Incidence & Etiology Occurs 1-8 per 1000 births (.09% to .8%) Uterine dehiscence occurs 2.0% of VBACsRelated to:Previous uterine surgery scarHyperstimulation of the uterusTraumaSpontaneous (very rare)True uterine rupture is exceedingly rare as above. Usually in labor, may occur spontaneously without risk factors.Dehiscence occurs slightly more often. Near-dehiscence or thinning of the scar is referred to as the “window” through the scar that might be seen when doing a C-section.
31Risk Factors Associated with Uterine Rupture Previous uterine surgery or curettageHigh dosages of oxytocinProstaglandins (misoprostol, dinoprostone)TachysystoleGrand multiparity (greater than 4)Abdominal traumaMidforceps rotationExternal cephalic versionsUterine rupture occurs most frequently in women with a previous uterine incision through the myometrium (muscle). Classical incision is considered to be the highest risk for rupture. Vertical incision, weak healing of scar, stretched again by pregnancy.Hyperstimulation or hypertonus of the uterus by oxytocin, or chemical weakening from prostaglandin administration can cause uterine rupture. Cytotec contraindicated.Invasive or blunt trauma as seen in women after a MVA, dom. violence, fall or with a gunshot wound.
32Clinical Manifestations Sudden fetal distressAbdominal painSyncope, pallor, vomiting, shockMaternal tachycardiaVaginal bleedingPresenting part ascentThe clinical picture may develop over several hours, with the woman complaining of the above symptoms.Uterine contractions usually continue.The most common sign of rupture is a non-reassuring FHR tracing—fetal bradycardia.The pain of uterine rupture usually overcomes an epidural (is not hidden by it).Bleeding can quickly cause maternal hypotension and shock.An inability to reach the presenting part on vaginal exam after having reached previously.Fetal parts may be felt through the abdomen outside the uterus.Anxiety and fear may be expressed by mother, knowing that something is wrong.Bleeding may be vaginal or intra-abdominal. Intra-abdominal bleeding may radiate pain to the shoulders.Dehiscence of a prior lower segment cesarean scar is usually asymptomatic.
33Medical Management Maternal hemodynamic stabilization Vital signs—observe for shockNote blood loss amounts (weigh chux)Maintain IV; order bloodImmediate Cesarean birthAlert needed staffMove quickly to ORUterine defect is repaired, or HysterectomyWho will you call?? Ob doctor, anesthesia, extra RN’s to care for patient, nursery, etc.Besides the physical things needed to address this emergency, remember the emotional needs of the patient and significant other. Fear and anxiety will be present. Inform patient of procedures and reassure her you will stay with her.
34Things to RememberRisk of uterine rupture increases with the number of previous incisions.For TOL for VBAC:Surgeon in-house & available throughout laborAnesthesia in-house & available throughout laborProstaglandin contraindicated in VBAC patientAvoid or minimize use of oxytocin in labor for VBACUterine rupture nearly triples for women with a history of more than two prior low-transverse cesarean births.Provider must be surgeon (not CNM or family practice doctor) and stay in house even in early phase of labor.The fact that a mom had a C/S years ago for breech, and then had 3 VBAC’s does NOT make her low-risk for rupture. In fact,the subsequent pregnancies thinned out her uterus and make her MORE at risk of rupture. The BEST Vbac is witha mom who had ONE C-section for breech or fetal distress (not CPD) and one previous vaginal birth.
35Stop here to play Kathleen’s game for nurses about Vaginal Bleeding s/s
36Amniotic Fluid Embolus (AFE) AFE results from amniotic fluid entering maternal venous circulation.Also called:anaphylactoid syndrome of pregnancy3 pre-requisites:Ruptured membranesRuptured uterine or cervical veinsA pressure gradient from uterus to veinCan occur before, during or after deliveryHypersensitivity or anaphylactic reaction to fetal antigens may be present.Primary finding is severe pulmonary arterial vasospasm as a result of amniotic fluid entering the lungs, followed by severe non-cardiogenic pulmonary edema.Also is called anaphylactoid syndrome of pregnancy. This is because studies indicate some women with fetal cell material in their circulation are fine (no s/s), and that women with AFE seem to have allergic reaction to fetal cells in their circulation.
37Incidence & Etiology Occurs 1/8000 to 1/80,000 AFE associated with 85% maternal / fetal mortality. Most surviving mothers have brain damage, and 100% develop DICCommon factors:Perhaps: male infant, hx allergiesFormer list of risk factors was:Strong uterine contractionsMeconium in amniotic fluidPremature placental separationLGA, hard birth, stillbornOlder mom, multiparaExtremely rare. Many providers do not see one in their entire career.Statistics Gilbert & Harmon, 2003;also Schoening, A, Am J Mat-Child Nsg, Mar 06For 75 years we have thought was simply a matter of embolus of amniotic fluid entering maternal circulation, fetal hair/cells/meconium blocking pulmonary blood vessels, etc. Recent work suggests is a catastrophic immune over-reaction to fetal cells in circulation.
38Clinical Manifestations Acute onset of respiratory distressDyspnea, cyanosisChest painLoss of consciousness, seizuresPulmonary edemaAcute onset of circulatory collapseSevere hypoxiaSevere hypotensionAcute onset of DICFear of deathMimics anaphylaxis and sepsis.
39Diagnosis & Medical Management Detection of fetal squamous cells, hair, lanugo, mucin, vernix, &/or meconium in maternal blood and lung fields is the cornerstone of diagnosisInitial Treatment:Cardiopulmonary resuscitation w/oxygenCirculatory support with blood componentsDetection of fetal squamous cells, hair, lanugo, and mucin in maternal blood has been the cornerstone for diagnosis, with many cases diagnosed at autopsy. Several clinicians have reported finding fetal squamous cells in blood aspirated from the pulmonary artery in patients without symptoms. And some women with AFE s/s did not have fetal cells detected in circulation.There are no data that any type of intervention improves maternal prognosis with amnionic fluid embolism (Williams 21st ed.) This is still true. Antihistamines have been tried don’t seem to help. Basically, you deliver them, do CPR, and give blood and they go to ICU.
40Nursing Care Plan Ensure IV access Initiate CPR Give oxygen at 10 L/minAssist with intubationObserve for s/s of shock, coagulopathyHelp patient deal with fear of dyingProvide explanation of emergency for family membersHere is a list of the steps you’d be involved with. With the family members, we often don’t kick everyone out of the room any longer during CPR, etc., because people deal with loss better if they KNOW we did everything we could. This is obviously a judgement call. You should anticipate grieving and call pastoral care, social worker, manager of your unit, etc. Luckily, as we said, you are not likely to see this occur in your career. Hopefully, medical science will develop better ways to predict, prevent, treat this problem.
41Disseminated Intravascular Coagulation What does DIC stand for?Answer: death is coming.Is a true crisis, the patient is bleeding uncontrollably.High mortality rate, rapid coordinated response of team important.
42DEFINITION DIC: small blood clots develop throughout the bloodstream Blocking all blood vesselsUsing up all the clotting factorsDIC is not a disease, but an event, caused by an illness or other severe problem that sets it in motion. Does it happen only in L&D? NO, it can happen to a 20 year old man in ICU with Sepsis!
43DIC: a Cascade Starts with stimulation of coagulant Consumption of clotting factorsFailure of clotting at the bleeding siteMicrothrombi formation throughout the circulatory systemClotting factors get all used upFibrinolysis and Fibrin Degradation Products reduces the efficacy of normal clottingThere is a cascade of events in DIC leading to massive hemorrhage.
44DIC triggers in pregnancy Placental abruptionHELLP syndromeSepsisRetained IUFDAmniotic fluid embolusIUFD is intra-uterine fetal demise
45Signs and Symptoms DIC usually develops rapidly Uncontrolled bleeding- cuts, IV site, mouth, nose, vagina, skin, into urineHidden intestinal, placental, abdominal, brain bleedingShock developsBleeds from gums, from previous venipuncture site from days ago…Typical shock symptoms on next slide
46Physiological Signs Easily bruises IV Site bleeding Abnormal vaginal bleedingROM- large blood lossTachycardiaHypotensionDecreased urinary outputFHR- Tachy then BradycardiaPatient shows S/s of shock.
47Testing- LAB WORK FDP- HIGH levels PT-HIGH PTT- HIGH Bleeding times- INCREASEDSerum Fibrinogen- LOWPlatelets- LOWH.E.L.L.P. SyndromeFDP is fibrin degradation products PT is protime….bleeding time
48TREATMENT IMMEDIATE DELIVERY- CRASH C/S 16 gauge IV Oxygen Right hip roll until delivered, etc.Transfusion blood productsTransport to ICUEmpty the uterus to correct initial cause of DIC. Delivery of placenta causes shift in process, with fibrinogen levels rising immediately, usually condition improves within few hours, (as far as clotting abnormality process).Give packed RBC’s, fresh frozen plasma (contains fibrinogen), cryoprecipitate (clotting factors), and platelets.Often need two teams. One perinatal, and one trauma/critical care response. Real concern after DIC is stopped, is looking for organ damage from all the little clots (kidney damage common, etc).
49Prolapsed CordDefinition: umbilical cord lies beside or below the presenting part of the fetus.Occurs in 0.3% to 0.6% of all pregnanciesOK, now let’s talk about something you can almost always do something to save the day!!!Review slide.The cord Can extend through the vaginal openingCan be felt at the cervical openingCan be occult or hidden
50The pictures show different degrees of prolapse The pictures show different degrees of prolapse. Look at the last one, of the breech baby. (show doll in breech position with cord attached…) ASK: why do breeches have prolapse more often?? Answer: poorly fitting presenting part allows it to slip down, and also cord attachment at low-lying navel predisposes it to drop.
51Etiology Potential hazard of ROM Contributing factors: Long cord Malpresentation or unengaged presenting partBreech presentationProlapse can happen with ANY ROM, but especially likely with AROM when head is not into pelvis. Is actually rare in SROM. The risk of prolapse, which might only be known thru EFM, is the reason the doctor or CNM needs the nurse in the room when doing an AROM.
52Diagnosis Variable decelerations during uterine contractions Fetal bradycardiaCord felt or seen protruding from vaginaIf your patient had AROM 15 minutes ago , and starts to have variable decels now, go check her again!
53Medical Management Examiner holds baby away from cord Reposition patientDo not handle cordCover exposed cord with wet saline-gauzePrepare for rapid deliveryUsually crash C/STo hold presenting part away from the cord, the examiner may have to put counter pressure on the presenting part until delivery—ride on the bed to C/S room, under drapes, etc.Reposition patient to reduce compression of the cord by the presenting part—Trendelenburg, knee-chest.Handling cord can cause the cord to spasm, shutting off the fetal blood supply.If the cord extends through the vagina, cover it with a sterile gauze pad moistened with saline solution to keep it from drying out.Call care provider at the slightest suspicion of a prolapsed cord.
54Actually, all cases I have seen involved putting mom in knee-chest position, to get best possible relief of pressure-off-cord, until surgeon and anesthesia and everyone else ready to go…..fast general while quick prep, and cut. Nurse under drape whole time holding head up.
55Fetal OutcomesWith prompt recognition & rapid delivery fetal outcome is excellentUnrelieved cord compression >5minrisk of significant CNS damage andfetal deathCord prolapse makes the nurse have a heart rate of about 150, but the outcomes are usually good because there is a lot you can do to keep the baby safe.
56Precipitous Labor and Delivery Kathleen Murray, CNM, MNLori Valentine, RNC
57Objectives Define precipitous labor and delivery Discuss the nursing management of a precipitous labor and delivery.
58DefinitionRapid labor for which the usual preparations and attendants are not present.The nurse assumes primary responsibility for the physical and psychological safe passage for mother and baby.
59Signs and Symptoms May display extreme agitation and discomfort Or, may be comfortableIncrease in bloody show,grunting , spontaneous pushingHow do you know your patient is going to deliver quickly?
60Physiology Low cervical resistance with strong contractions Relaxed pelvic muscles, low resistance to fetal descentMultiparous, with previous vaginal births, in vigorous laborAlso can be caused byoxytocin use!!
61Complications Uterine rupture Pelvic tissue trauma Fetal hypoxia Fetal head traumaErb’s palsyComplications are actually rare with precip births. (move immediately into next slides which explain the complications).
62Uterine RuptureTumultuous labor with abnormally strong uterine contractions and a firm closed cervixSpontaneous rupture of the uterus from a hard fast labor is very rare, more likely with preterm when cervix is not ripe, or when we are giving too much pitocin!!!!.
63Pelvic Tissue Trauma3rd or 4th degree laceration involving the perineal body and anal sphincterCervical lacerationUrethral lacerationActually, 3rd and 4th degree tears are almost always due to an episiotomy, not to the nurse delivering a baby.
64Fetal HypoxiaVigorous labor low fetal oxygenation due to poor placental perfusionIncreased risk of meconiumIncreased risk for an acidotic newborn requiring resuscitationWhat will you ask the other nurse in the room to do if you are busy catching a precip baby??? Answer: she should get supplies ready to resuscitate the baby because sometimes the baby is overwhelmed by the rapid birth.
65Fetal Head TraumaResistance of the birth canal to expulsion of the head, causing intracranial traumaASK: This is most likely with which babies??? Answer: preterm.
66Erb’s PalsyInjury of the brachial plexus affecting the nerves that control the muscles of the arm and handThis is like the injury that occurs with shoulder dystocia, in this case it’s not from being stuck in the birth canal, it’s from the shoulder dragging against the pubic bones real fast as the baby comes shooting out. Kind of like a whiplash injury~!
67Nursing Responsibility Delivering baby is outside the usual scope of practice for the intrapartum nurseResponsible for the adequate assessment of mother and fetusAppropriate communication with the MD or CNM about the patient’s statusDocumentationYou aren’t ‘supposed’ to have to deliver the babies, but sometimes it’s going to happen!! Your primary responsibilities are to addess mom and baby, see the signs of impending birth and notify the provider promptly so they have a chance to make it to the hospital in time.your documentation needs to include what you concluded, and who and when you called for help, and what the events were at birth.
68Affirmative Duty Actions Actions the obstetric nurse is required to perform legally include making vital assessments, recognizing the significance of findings, and taking actionsFailure to act may place the nurse in legal jeopardy (malpractice case: nurse managed a complicated birth & the baby died)Nurse held responsible for: failing to assess the situation adequately and neglecting to notify the MD promptlyYou might worry about being blamed for a precip. It is your job to do the normal nurse things (oxygen, IV, positioning, etc based on condition), and to recognize risk of precip, to call for help in time. That’s all you are expected to be skilled at.
69Nursing Interventions Remain calm – project confidence that the situation is under controlNever leave the patient. Make calls from the room for assistance.Continuously reassure the patient and explain what is happeningEncourage patient to pant when she can,and bear down gently only when she must.If you DO need to deliver a precipitous baby: (slide) don’t tell them it’s your first time (until it’s over!); call for lots of experienced help!
70Management and Nursing Care Precipitous birth kitNeed cord clamps, scissors, & bulb syringeCall for more nursesIf time permits, scrub/glove/drape
71Positioning Leave bed intact! Relieves the nurse from worrying about catching a slippery babySide-lying position can slow descentLeaving the bed unbroken is safer for the baby, and the patient and family will worry less ALSO about the baby falling!
72Delivery in Vertex Presentation Gentle pressure with fingers against the fetal skullDon’t hold baby in!Put your hands on the head as it emerges. No pressure on the neck, just hold the bony skull. The head comes out flexed, with the crown (top-back) of head coming first. Place a hand on head and another underneath on the perineum. You don’t have to do anything special there. Once the head is born, you might see external rotation take place, when the neck unwinds and the baby’s face turns toward mom’s thigh.
73Nuchal CordPalpate for a cord. If loose, pull over head or slip over body as shoulders deliverIf tight, clamp x 2 and cut between clampsOr, Somersault manuever- deliver head, then flex the head and torso into the mother’s groin. The rest of the body folds and somersaults outWill demo with mannequin
74Birth of bodyAssist shoulders by pressing down on the fetal head (for anterior shoulder) and then raising head (for posterior shoulder followed by body)Anterior shoulder will be past the symphysis before delivery of the posterior shoulder
75Vertex Delivery Suction mouth and nose prn Clamp & cut cord Baby onto maternal abdomen. Provide tactile stimulation/dry off with warm towels and coverCutting the cord is not emergency unless you need to do CPR on the baby!!!
76Breech Precipitous Delivery Buttocks usually presents first-maintain a hands off attitude until baby born to level of the umbilicusThen pull a substantial loop of cord to prevent tension on it during the deliveryHow would you know your patient’s baby is breech? Answer: might have history of it (planning C-Section). Otherwise, you discover it during a vag exam or when she’s pushing (if you really want to live on the wild side of life!!). Sometimes hard to feel, butts can be bony. Might see what you think is Head…. Wait, no hair, cleft down center, genitals, squirting stream of mec out of an orifice… all clues.
77Breech Delivery of Body Cover lower half of baby with a towel to provide warmth and good control during next maneuversBirth of shoulders should be in transverse positionWith hands placed on bony parts of hips, gentle traction is applied downward until axillae are visibleLift baby’s body carefully upward to deliver each shoulder and arm
78Breech Delivery of Head Baby still should face downwardOne hand under baby supporting body and other hand over back with fingers over shoulders on either side of neckGentle downward traction until nape of neck viewed, then lift carefully upward to allow face to clear perineum, head gently rolls out of the pelvisFlexion can be assisted by a 2nd person applying suprapubic pressure
79Care of Newborn Provide tactile stimulation Dry off baby with warm towels (if heated-up warmer not available, stay skin to skin with mother!)Assess airway, breathing and circulationAssign APGAR scoresFollow the usual NRP guidelines about assessing your baby. Expect that the legs won’t lay down for a few hours. Baby stays with mom if possible, just like with other births.
80Maternal History in Precip Birth If uncertain pregnancy history, assess gestational age using the Ballard scoring system.Illicit drug use?Ballard score uses physical and neurological signs to assess gestational development. Accurate within 2 weeks, plus or minus.ID infants at risk for hypoglycemia, respiratory distress. Is the baby pink but sleepy, with respiratory depression?? Don’t give Narcan to a baby if mom is suspected narcotic addict, risk of seizures from abrupt withdrawal for baby. It’s better to just keep bagging them.
81Delivery of Placenta Wait and observe S/S of placental separation:lengthening of cord, gush of blood, pt c/o cramping or pressureGently pull down on cord as mother bears downGuard the uterus to prevent inversion of the uterusHow long does it take for a placenta to be born? A few minutes, to 30 or so.What’s the biggest cause of PPH? Answer: the jerk on the end of the cord!!! Don’t pull on it unless it’s coming easily!!If you’re guiding by pulling on cord, remember to put other hand above symphysis and guard the uterus from inverting, just like you do when you do fundal massage in a postpartum patient.
82Delivery of PlacentaSupport placenta as it delivers to prevent tearing/retention of amniotic membranesFirm massage controls bleedingInitiate breastfeedingControl bleeding from lacerations by applying ice in sterile glove, or direct pressure with sterile gauze
83Vaginal Delivery Practice using mannequins in room
84References OB Emergencies and Precip Birth Creasy, R, et al, Maternal-Fetal Medicine Principles & Practice, 6th ed. 2009, Saunders ElsevierCunningham, FG, et al., Williams Obstetrics 23rd ed. 2010, McGraw HillGilbert, E, Manual of High Risk Pregnancy & Delivery, 5th ed. 2010Perry, S. et al, Maternal Child Nursing Care, 4th ed., 2010, Mosby ElsevierInternational Vasa Previa Foundation,Lijoi, A, Brady, J, JAHFD, Nov 2003, Vol 16, Number 6, ppMartin, EJ, Intrapartum Management Modules, 4th ed. 2010, LippincottMattson, S, Smith, JE, Core Curriculum for Maternal-Newborn Nursing 4th ed. 2011, AWHONN