KETONES 12/2008.

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Presentation transcript:

KETONES 12/2008

Goal: Optimal Student Health and Learning Ketone Monitoring is a vital piece of a comprehensive plan. This training component is one of thirteen components created specifically for school nurses and non-medical school personnel who perform diabetes care tasks at school. These components are: • Diabetes Basics • Diabetes Medical Management Plan • Hypoglycemia • Hyperglycemia • Blood Glucose Monitoring • Glucagon Administration • Insulin Basics • Insulin by Syringe and Vial • Insulin by Pen • Insulin by Pump • Ketones • Nutrition and Physical Activity • Legal Considerations This unit is about Ketones.

Learning Objectives Participants will be able to understand: What ketones are Why ketones are monitored When ketones should be monitored When to contact school nurse, parent/guardian, health care provider Participants will be able to demonstrate: How to perform a ketone test The subject of this unit is ketone monitoring in the school setting. Participants will be able to understand: What ketones are Why ketones are monitored When ketones should be monitored When to contact school nurse, parent/guardian, health care provider Participants will be able to demonstrate: How to perform a ketone test

What Are Ketones? Acids that result when the body does not have enough insulin and uses fats for energy May occur when insulin is not given, during illness or extreme bodily stress, or with dehydration Can cause abdominal pain, nausea, and vomiting Without sufficient insulin ketones continue to build up in the blood and result in diabetic ketoacidosis (DKA) Ketones are acids that result when the body does not have enough insulin and uses fats for energy. Ketones may be observed when insulin is not given, during illness or extreme bodily stress, or with dehydration. Ketones can cause abdominal pain, nausea, and vomiting. Without sufficient insulin ketones continue to build up in the blood and result in diabetic ketoacidosis (DKA).

Why Test for Ketones? DKA is a critical emergency state Early detection and treatment of ketones prevents diabetic ketoacidosis (DKA) and hospitalizations due to DKA Untreated, progression to DKA may lead to severe dehydration, coma, permanent brain damage, or death DKA is the number one reason for hospitalizing children with diabetes Reasons for testing for ketones It is important to test for ketones because they can build up in the body and result in one of the two emergencies of diabetes, diabetic ketoacidosis, often referred to as “DKA”. DKA is a condition that occurs due to insufficient insulin in the body. This can be due to illness, not enough insulin/medication doses or omitting insulin injections. If the test shows medium or large ketones to be present, extra insulin may be needed, if specified in the student’s Diabetes Medical Management Plan (DMMP) to reduce the level of ketones. If the ketones are not detected early, particularly during illness, they will continue to build up in the body and DKA may result. DKA is the number one reason for hospitalizing children with diabetes in the U.S. It is the early detection of ketones and treatment with insulin that prevents hospitalizations for DKA.

When Should Ketones Be Checked? The DMMP should specify, generally: When blood glucose remains elevated During acute illness, infection or fever Whenever symptoms of DKA are present Nausea Vomiting or diarrhea Abdominal Pain Fruity breath odor Common symptoms including fruity odor to breath, nausea, vomiting, drowsiness, abdominal pain Rapid breathing Thirst and frequent urination Fatigue or lethargy The individual student’s DMMP should specify when ketones are to be checked. Generally ketones should be checked when : Repeated blood glucose readings are over the target range as specified in the care plan During acute illness, infection or fever If the student has any of the following symptoms of DKA: Nausea Vomiting or diarrhea Abdominal Pain Fruity breath odor Rapid breathing Thirst and frequent urination Fatigue or lethargy

How Quickly Does DKA Progress? An isolated high blood glucose reading, in the absence of other symptoms is not cause for alarm DKA usually develops over hours, or even days DKA can progress much more quickly for students who use insulin pumps, or those who have an illness or infection Most at risk when symptoms of DKA are mistaken for flu and high blood glucose is unchecked and untreated Unlike low blood glucose, which can progress very quickly, the progression of untreated high blood glucose to DKA is usually a slow process. An isolated high blood glucose reading, in the absence of other symptoms is not cause for alarm. DKA usually develops over hours, or even days. However, DKA can progress much more quickly for students who use insulin pumps, or those who have an illness or infection. Individuals with diabetes are most at risk when symptoms of DKA are mistaken for flu and high blood glucose is unchecked and untreated.

Checking for Ketones Urine testing Blood testing Most widely used method Blood testing Requires a special meter and strip Procedure similar to blood glucose checks Note: Ketones can be measured in either the blood (using a ketone specific meter) or in the urine. Urine ketone testing continues to be most common in the school setting.

How to Test Urine Ketones 1. Gather supplies 2. Student urinates in clean cup 3. Put on gloves, if performed by someone other than student 4. Dip the ketone test strip in the cup containing urine. Shake off excess urine 5. Wait 15 - 60 seconds 6. Read results at designated time 7. Record results, take action per DMMP Urine Ketone Testing Instructions: 1. Gather supplies: vial of ketone strips, urine cup 2. Student urinates in clean cup. 3. Put on gloves, if performed by someone other than student. 4. Dip the ketone test strip in the paper cup containing urine. Shake off excess urine. 5. Wait 15 - 60 seconds, as indicated on the directions printed on the bottle label. 6. Read the results at the designated time by comparing the color on the strip to the color chart printed on the label on the bottle. 7. Record results and take action per DMMP.

Test Results: Color Code When recording results record the descriptor from color coding on the packaging. Record both the word and numerical result labels. Note: At this point in the training the instructor of training demonstrates checking of urine ketones and how to read results when compared to color coding on packaging. Generally: No ketones = no action needed Trace ketones = encourage drinking water Small ketones = encourage drinking water Moderate ketones = needs insulin Large ketones = insulin critical no ketones trace small moderate large ketones present

Considerations Colors on strips and timing vary according to brand If using a scale with “urine glucose” and “urine ketones,” be sure to read the correct scale when testing for ketones Follow package instructions regarding expiration dates, time since opening, correct handling, etc., as incorrect results may occur Ketone strips stored in bottles expire six (6) months after opening. Ketone strips stored in individual foil packages expire according to date on box or foil package.

How To Test for Blood Ketones Prepare lancing device Wash hands using warm soapy water and dry them completely Remove the test strip from its foil packet Insert the three black lines at the end of the test strip into the strip port Push the test strip in until it stops Prepare lancing device. Wash hands using warm soapy water and dry them completely. Remove the test strip from its foil packet. Insert the three black lines at the end of the test strip into the strip port. Push the test strip in until it stops. The monitor turns on automatically.

How To Test for Blood Ketones Touch the blood drop to the purple area on the top of the test strip. The blood is drawn into the test strip Continue to touch the blood drop to the purple area on the top of the test strip until the monitor begins the test The blood ß-Ketone result shows on the display window with the word KETONE Touch the blood drop to the purple area on the top of the test strip. The blood is drawn into the test strip. Note: If the monitor shuts off before you apply blood to the test strip, remove the test strip from the monitor and try again. Continue to touch the blood drop to the purple area on the top of the test strip until the monitor begins the test. The blood ß-Ketone result shows on the display window with the word KETONE. The result is stored in the monitor’s memory as a blood ß-Ketone result.

Treatment of Ketones DMMP specifies treatment for ketones for the individual student. free use of bathroom sugar-free liquids insulin as per DMMP limit physical activity if vomiting or lethargic, call parent/guardian Generally: If ketones are present, treatment should follow the recommendations specified for the individual student in his/her DMMP, including the notification of parent/guardian and/or student health care providers as appropriate. Generally: Allow free use of bathroom. Students should be encouraged to drink sugar-free, calorie free liquids, like water or diet soda. Students who are nauseous and vomiting may need to take in liquids slowly to avoid more vomiting and dehydration. Extra insulin may need to be given. The student’s DMMP should specify what dose should be given for the blood glucose and ketone test results. Students should not engage in physical activity per DMMP. If vomiting occurs or if student is lethargic with ketones present, parent/guardian should be called or call for medical assistance if parent/guardian cannot be reached.