HESI RN
HESI 799 RN Exit Exam
1. A client with type 1 diabetes is admitted with hypoglycemia. Which intervention should the nurse implement first?
- A. Administer 50% dextrose IV push
- B. Administer 15 grams of oral glucose
- C. Recheck the blood glucose level in 15 minutes
- D. Administer a glucagon injection
Correct answer: A
Rationale: Administering 50% dextrose IV push is the first priority in treating hypoglycemia to rapidly increase blood glucose levels. This choice is correct because in severe cases of hypoglycemia, when a client is admitted and unconscious or unable to swallow, intravenous administration of dextrose is crucial to quickly raise blood glucose levels. Option B, administering 15 grams of oral glucose, would be suitable for conscious clients with mild hypoglycemia who can swallow safely. Option C, rechecking blood glucose levels, should follow after immediate intervention to assess the response. Option D, administering a glucagon injection, is more suitable for cases where dextrose is not readily available or when the client does not respond to dextrose administration.
2. A client with diabetes mellitus is admitted with a blood glucose level of 600 mg/dl and is unresponsive. Which intervention should the nurse implement first?
- A. Administer 50% dextrose IV push
- B. Administer IV fluids as prescribed
- C. Check the client's blood glucose level
- D. Prepare the client for immediate dialysis
Correct answer: B
Rationale: Administering IV fluids as prescribed should be the first intervention for a client with diabetes mellitus admitted with a blood glucose level of 600 mg/dl and unresponsive. This intervention is crucial in managing hyperglycemia by helping to correct dehydration and electrolyte imbalances. Administering 50% dextrose IV push (Choice A) would worsen hyperglycemia in this scenario. Checking the client's blood glucose level (Choice C) is important but not the priority when dealing with an unresponsive client with severe hyperglycemia. Immediate dialysis preparation (Choice D) is not indicated as the first intervention for hyperglycemia.
3. The nurse is preparing a 50 ml dose of 50% dextrose IV for a client with insulin shock. What is the most immediate intervention by the nurse?
- A. Dilute the dextrose in one liter of 0.9% Normal Saline solution.
- B. Mix the dextrose in a 50 ml piggyback for a total volume of 100 ml.
- C. Push the undiluted dextrose slowly through the current IV infusion.
- D. Ask the pharmacist to add the dextrose to a TPN solution.
Correct answer: C
Rationale: The correct immediate intervention by the nurse in this situation is to push the undiluted 50% dextrose slowly through the current IV infusion. This is because in cases of insulin shock, where the client has dangerously low blood sugar levels, administering 50% dextrose directly into the bloodstream helps rapidly increase blood glucose levels. Choice A is incorrect because diluting the dextrose in one liter of normal saline would delay the administration of glucose, which is needed urgently. Choice B is incorrect as mixing the dextrose in a piggyback solution would also delay the administration of the concentrated dextrose. Choice D is incorrect because adding dextrose to a TPN solution is not the immediate intervention needed to address the low blood sugar levels in a client experiencing insulin shock.
4. A client with a history of myocardial infarction is admitted with chest pain. Which laboratory value should the nurse monitor closely?
- A. White blood cell count
- B. Serum creatinine
- C. Troponin level
- D. Hemoglobin level
Correct answer: C
Rationale: The correct answer is C: Troponin level. Troponin levels should be closely monitored in a client with chest pain and a history of myocardial infarction to assess for ongoing myocardial injury. Troponin is a specific marker for myocardial damage. Monitoring white blood cell count (choice A) is not directly related to myocardial infarction. Serum creatinine (choice B) is more indicative of renal function rather than cardiac status. Hemoglobin level (choice D) is important but does not directly reflect ongoing myocardial injury.
5. A client is admitted with a possible myocardial infarction. Which laboratory test result is most indicative of a myocardial infarction?
- A. Serum creatine kinase (CK)
- B. Serum troponin
- C. Serum myoglobin
- D. C-reactive protein (CRP)
Correct answer: B
Rationale: Serum troponin is the most specific and sensitive indicator of myocardial infarction. Troponin levels rise within 3-4 hours after myocardial damage, peak at 10-24 hours, and remain elevated for up to 10-14 days. Creatine kinase (CK) and myoglobin can also be elevated in myocardial infarction, but troponin is more specific to cardiac muscle damage. C-reactive protein (CRP) is a marker of inflammation and is not specific for myocardial infarction.
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