Ignat Ch 64: Care of Patients with Diabetes Mellitus Flashcards
A nurse is teaching a client with diabetes mellitus who asks, Why is it necessary to maintain my blood glucose levels no lower than about 60 mg/dL? How should the nurse respond?
a. Glucose is the only fuel used by the body to produce the energy that it needs.
b. Your brain needs a constant supply of glucose because it cannot store it.
c. Without a minimum level of glucose, your body does not make red blood cells.
d. Glucose in the blood prevents the formation of lactic acid and prevents acidosis.
ANS: B
Because the brain cannot synthesize or store significant amounts of glucose, a continuous supply from the bodys circulation is needed to meet the fuel demands of the central nervous system. The nurse would want to educate the client to prevent hypoglycemia. The body can use other sources of fuel, including fat and protein, and glucose is not involved in the production of red blood cells. Glucose in the blood will encourage glucose metabolism but is not directly responsible for lactic acid formation.
A nurse reviews laboratory results for a client with diabetes mellitus who presents with polyuria, lethargy, and a blood glucose of 560 mg/dL. Which laboratory result should the nurse correlate with the clients polyuria?
a. Serum sodium: 163 mEq/L
b. Serum creatinine: 1.6 mg/dL
c. Presence of urine ketone bodies
d. Serum osmolarity: 375 mOsm/kg
ANS: D
Hyperglycemia causes hyperosmolarity of extracellular fluid. This leads to polyuria from an osmotic diuresis. The clients serum osmolarity is high. The clients sodium would be expected to be high owing to dehydration. Serum creatinine and urine ketone bodies are not related to the polyuria.
After teaching a young adult client who is newly diagnosed with type 1 diabetes mellitus, the nurse assesses the clients understanding. Which statement made by the client indicates a correct understanding of the need for eye examinations?
a. At my age, I should continue seeing the ophthalmologist as I usually do.
b. I will see the eye doctor when I have a vision problem and yearly after age 40
c. My vision will change quickly. I should see the ophthalmologist twice a year.
d. Diabetes can cause blindness, so I should see the ophthalmologist yearly.
ANS: D
Diabetic retinopathy is a leading cause of blindness in North America. All clients with diabetes, regardless of age, should be examined by an ophthalmologist (rather than an optometrist or optician) at diagnosis and at least yearly thereafter.
A nurse assesses a client who has a 15-year history of diabetes and notes decreased tactile sensation in both feet. Which action should the nurse take first?
a. Document the finding in the clients chart.
b. Assess tactile sensation in the clients hands.
c. Examine the clients feet for signs of injury.
d. Notify the health care provider.
ANS: C
Diabetic neuropathy is common when the disease is of long duration. The client is at great risk for injury in any area with decreased sensation because he or she is less able to feel injurious events. Feet are common locations for neuropathy and injury, so the nurse should inspect them for any signs of injury. After assessment, the nurse should document findings in the clients chart. Testing sensory perception in the hands may or may not be needed. The health care provider can be notified after assessment and documentation have been completed.
A nurse cares for a client who has a family history of diabetes mellitus. The client states, My father has type 1 diabetes mellitus. Will I develop this disease as well? How should the nurse respond?
a. Your risk of diabetes is higher than the general population, but it may not occur.
b. No genetic risk is associated with the development of type 1 diabetes mellitus.
c. The risk for becoming a diabetic is 50% because of how it is inherited.
d. Female children do not inherit diabetes mellitus, but male children will.
ANS: A
Risk for type 1 diabetes is determined by inheritance of genes coding for HLA-DR and HLA-DQ tissue types. Clients who have one parent with type 1 diabetes are at increased risk for its development. Diabetes (type 1) seems to require interaction between inherited risk and environmental factors, so not everyone with these genes develops diabetes. The other statements are not accurate.
A nurse teaches a client who is diagnosed with diabetes mellitus. Which statement should the nurse include in this clients plan of care to delay the onset of microvascular and macrovascular complications?
a. Maintain tight glycemic control and prevent hyperglycemia.
b. Restrict your fluid intake to no more than 2 liters a day.
c. Prevent hypoglycemia by eating a bedtime snack.
d. Limit your intake of protein to prevent ketoacidosis.
ANS: A
Hyperglycemia is a critical factor in the pathogenesis of long-term diabetic complications. Maintaining tight glycemic control will help delay the onset of complications. Restricting fluid intake is not part of the treatment plan for clients with diabetes. Preventing hypoglycemia and ketosis, although important, are not as important as maintaining daily glycemic control.
A nurse assesses clients who are at risk for diabetes mellitus. Which client is at greatest risk?
a. A 29-year-old Caucasian
b. A 32-year-old African- American
c. A 44-year-old Asian
d. A 48-year-old American Indian
ANS: D
Diabetes is a particular problem among African Americans, Hispanics, and American Indians. The incidence of diabetes increases in all races and ethnic groups with age. Being both an American Indian and middle-aged places this client at highest risk.
A nurse teaches a client about self-monitoring of blood glucose levels. Which statement should the nurse include in this clients teaching to prevent bloodborne infections?
a. Wash your hands after completing each test.
b. Do not share your monitoring equipment.
c. Blot excess blood from the strip with a cotton ball.
d. Use gloves when monitoring your blood glucose.
ANS: B
Small particles of blood can adhere to the monitoring device, and infection can be transported from one user to another. Hepatitis B in particular can survive in a dried state for about a week. The client should be taught to avoid sharing any equipment, including the lancet holder. The client should be taught to wash his or her hands before testing. The client would not need to blot excess blood away from the strip or wear gloves.
A nurse teaches a client with type 2 diabetes mellitus who is prescribed glipizide (Glucotrol). Which statement should the nurse include in this clients teaching?
a. Change positions slowly when you get out of bed.
b. Avoid taking nonsteroidal anti-inflammatory drugs (NSAIDs).
c. If you miss a dose of this drug, you can double the next dose.
d. Discontinue the medication if you develop a urinary infection.
ANS: B
NSAIDs potentiate the hypoglycemic effects of sulfonylurea agents. Glipizide is a sulfonylurea. The other statements are not applicable to glipizide.
After teaching a client with type 2 diabetes mellitus who is prescribed nateglinide (Starlix), the nurse assesses the clients understanding. Which statement made by the client indicates a correct understanding of the prescribed therapy?
a. Ill take this medicine during each of my meals.
b. I must take this medicine in the morning when I wake.
c. I will take this medicine before I go to bed.
d. I will take this medicine immediately before I eat.
ANS: D
Nateglinide is an insulin secretagogue that is designed to increase meal-related insulin secretion. It should be taken immediately before each meal. The medication should not be taken without eating as it will decrease the clients blood glucose levels. The medication should be taken before meals instead of during meals.
A nurse cares for a client who is prescribed pioglitazone (Actos). After 6 months of therapy, the client reports that his urine has become darker since starting the medication. Which action should the nurse take?
a. Assess for pain or burning with urination.
b. Review the clients liver function study results.
c. Instruct the client to increase water intake.
d. Test a sample of urine for occult blood.
ANS: B
Thiazolidinediones (including pioglitazone) can affect liver function; liver function should be assessed at the start of therapy and at regular intervals while the client continues to take these drugs. Dark urine is one indicator of liver impairment because bilirubin is increased in the blood and is excreted in the urine. The nurse should check the clients most recent liver function studies. The nurse does not need to assess for pain or burning with urination and does not need to check the urine for occult blood. The client does not need to be told to increase water intake.
A nurse cares for a client with diabetes mellitus who asks, Why do I need to administer more than one injection of insulin each day? How should the nurse respond?
a. You need to start with multiple injections until you become more proficient at self-injection.
b. A single dose of insulin each day would not match your blood insulin levels and your food intake patterns.
c. A regimen of a single dose of insulin injected each day would require that you eat fewer carbohydrates.
d. A single dose of insulin would be too large to be absorbed, predictably putting you at risk for insulin shock.
ANS: B
Even when a single injection of insulin contains a combined dose of different-acting insulin types, the timing of the actions and the timing of food intake may not match well enough to prevent wide variations in blood glucose levels. One dose of insulin would not be appropriate even if the client decreased carbohydrate intake. Additional injections are not required to allow the client practice with injections, nor will one dose increase the clients risk of insulin shock.
After teaching a client with diabetes mellitus to inject insulin, the nurse assesses the clients understanding. Which statement made by the client indicates a need for additional teaching?
a. The lower abdomen is the best location because it is closest to the pancreas.
b. I can reach my thigh the best, so I will use the different areas of my thighs.
c. By rotating the sites in one area, my chance of having a reaction is decreased.
d. Changing injection sites from the thigh to the arm will change absorption rates.
ANS: A
The abdominal site has the fastest rate of absorption because of blood vessels in the area, not because of its proximity to the pancreas. The other statements are accurate assessments of insulin administration.
A nurse assesses a client with diabetes mellitus and notes the client only responds to a sternal rub by moaning, has capillary blood glucose of 33 g/dL, and has an intravenous line that is infiltrated with 0.45% normal saline. Which action should the nurse take first?
a. Administer 1 mg of intramuscular glucagon.
b. Encourage the client to drink orange juice.
c. Insert a new intravenous access line.
d. Administer 25 mL dextrose 50% (D50) IV push.
ANS: A
The clients blood glucose level is dangerously low. The nurse needs to administer glucagon IM immediately to increase the clients blood glucose level. The nurse should insert a new IV after administering the glucagon and can use the new IV site for future doses of D50 if the clients blood glucose level does not rise. Once the client is awake, orange juice may be administered orally along with a form of protein such as a peanut butter.
A nurse cares for a client with diabetes mellitus who is visually impaired. The client asks, Can I ask my niece to prefill my syringes and then store them for later use when I need them? How should the nurse respond?
a. Yes. Prefilled syringes can be stored for 3 weeks in the refrigerator in a vertical position with the needle pointing up.
b. Yes. Syringes can be filled with insulin and stored for a month in a location that is protected from light.
c. Insulin reacts with plastic, so prefilled syringes are okay, but you will need to use glass syringes.
d. No. Insulin syringes cannot be prefilled and stored for any length of time outside of the container.
ANS: A
Insulin is relatively stable when stored in a cool, dry place away from light. When refrigerated, prefilled plastic syringes are stable for up to 3 weeks. They should be stored in the refrigerator in the vertical position with the needle pointing up to prevent suspended insulin particles from clogging the needle.
A nurse teaches a client who is prescribed an insulin pump. Which statement should the nurse include in this clients discharge education?
a. Test your urine daily for ketones.
b. Use only buffered insulin in your pump.
c. Store the insulin in the freezer until you need it.
d. Change the needle every 3 days.
ANS: D
Having the same needle remain in place through the skin for longer than 3 days drastically increases the risk for infection in or through the delivery system. Having an insulin pump does not require the client to test for ketones in the urine. Insulin should not be frozen. Insulin is not buffered.
After teaching a client who has diabetes mellitus and proliferative retinopathy, nephropathy, and peripheral neuropathy, the nurse assesses the clients understanding. Which statement made by the client indicates a correct understanding of the teaching?
a. I have so many complications; exercising is not recommended.
b. I will exercise more frequently because I have so many complications.
c. I used to run for exercise; I will start training for a marathon.
d. I should look into swimming or water aerobics to get my exercise.
ANS: D
Exercise is not contraindicated for this client, although modifications based on existing pathology are necessary to prevent further injury. Swimming or water aerobics will give the client exercise without the worry of having the correct shoes or developing a foot injury. The client should not exercise too vigorously.
An emergency department nurse assesses a client with ketoacidosis. Which clinical manifestation should the nurse correlate with this condition?
a. Increased rate and depth of respiration
b. Extremity tremors followed by seizure activity
c. Oral temperature of 102 F (38.9 C)
d. Severe orthostatic hypotension
ANS: A
Ketoacidosis decreases the pH of the blood, stimulating the respiratory control areas of the brain to buffer the effects of increasing acidosis. The rate and depth of respiration are increased (Kussmaul respirations) in an attempt to excrete more acids by exhalation. Tremors, elevated temperature, and orthostatic hypotension are not associated with ketoacidosis.
A nurse assesses a client who has diabetes mellitus. Which arterial blood gas values should the nurse identify as potential ketoacidosis in this client?
a. pH 7.38, HCO3 22 mEq/L, PCO2 38 mm Hg, PO2 98 mm Hg
b. pH 7.28, HCO3 18 mEq/L, PCO2 28 mm Hg, PO2 98 mm Hg
c. pH 7.48, HCO3 28 mEq/L, PCO2 38 mm Hg, PO2 98 mm Hg
d. pH 7.32, HCO3 22 mEq/L, PCO2 58 mm Hg, PO2 88 mm Hg
ANS: B
When the lungs can no longer offset acidosis, the pH decreases to below normal. A client who has diabetic ketoacidosis would present with arterial blood gas values that show primary metabolic acidosis with decreased bicarbonate levels and a compensatory respiratory alkalosis with decreased carbon dioxide levels.
A nurse cares for a client experiencing diabetic ketoacidosis who presents with Kussmaul respirations. Which action should the nurse take?
a. Administration of oxygen via face mask
b. Intravenous administration of 10% glucose
c. Implementation of seizure precautions
d. Administration of intravenous insulin
ANS: D
The rapid, deep respiratory efforts of Kussmaul respirations are the bodys attempt to reduce the acids produced by using fat rather than glucose for fuel. Only the administration of insulin will reduce this type of respiration by assisting glucose to move into cells and to be used for fuel instead of fat. The client who is in ketoacidosis may not experience any respiratory impairment and therefore does not need additional oxygen. Giving the client glucose would be contraindicated. The client does not require seizure precautions.