Presentation on theme: "Week 6 Perfusion. Learning Objectives 1.Describe and list factors that affect oxygenation and tissue perfusion. 2. Explain common physical assessment."— Presentation transcript:
Week 6 Perfusion
Learning Objectives 1.Describe and list factors that affect oxygenation and tissue perfusion. 2. Explain common physical assessment procedures used to evaluate respiratory health of patients across the lifespan. 3. Identify priority respiratory assessment findings. 4.Differentiate normal respiratory assessment from abnormal findings.
Learning Objectives (cont’d.) 5. Describe the integral relationship between perfusion and oxygenation. 6. Explain the role and limitations associated with pulse oximetry assessment. 7. Explain and utilize vital signs and peripheral vascular assessment techniques and findings to assess perfusion.
Perfusion – A continuous supply of oxygenated blood to every cell in the body through the body’s vessels. (Pumped to all parts).
Circulatory system: a closed system
Blood circulation through the heart
Perfusion: affected by pump failure, decreased volume, arterial obstruction Arterial walls: Blood pressure is controlled by the body with vasoconstrictors that increase pressure and with vasodilators that reduce pressure.
Nine pulse sites tell us that heart-pumped blood is reaching peripheral areas of the body
What do you feel/palpate/see to assess tissue perfusion? Peripheral pulses and capillary refill
Do you know your stuff?
Choking is a ventilation issue… (airway)
Swollen tongue is a ventilation (airway) issue
Head Trauma: potential for decreased ventilation and possible obstruction, and or swelling of the airway
Open System: an amputation is perfusion issue
No oxygen to heart muscle– no perfusion, dying muscle, and reduced pump action which…
results in decreased perfusion to the rest of the body
An irregular heart rate results in decreased tissue perfusion
Respiratory infections, such as pneumonia, may decrease diffusion
Q. Our body’s compensatory mechanisms, which react in the presence of infection, include which of the following in a patient with a bilateral lung infection? a. Decreased blood pressure b. Increased blood pressure c. Increased respiratory and heart rate d. Decreased respiratory and heart rate
c. Increased respiratory and heart rate
Late finding in hypoxemia: cyanosis
Q. An early sign of hypoxemia is: a. Depression b. Euphoria c. Fist pumping d. Restlessness
Q. What is the first thing you do when someone has difficulty breathing? a. Have them raise their feet b. Sit them up in a high upright position c. Give them water to drink d. Take their blood pressure
b. Sit them up in a high upright position
Locating the Apical Pulse: Left midclavicular line between the fourth and fifth intercostal space
Locating the Radial Pulse
Become familiar with Table on page 1422, Classification of Blood Pressure for Adults, in Nursing: A Concept-Based Approach to Learning (Volume One)
Decreased tissue perfusion is determined by delayed capillary refill of fingers and toes…
Correct order for assessing posterior breath sounds…
Have the patient take slow deep breaths through their mouth when auscultating the lungs
Exam #2 next week: Will include information covered in sessions (weeks) 1, 2, 3, 4, 5, and 6