HESI RN
HESI RN CAT Exit Exam
1. The nurse is administering total parenteral nutrition (TPN) via a central line at 75 ml/hour to a client who had a bowel resection 4 days ago. Which laboratory finding requires the most immediate intervention by the nurse?
- A. Blood glucose of 140 mg/dL
- B. White blood cell count of 8000/mm³
- C. Serum potassium of 3.8 mEq/L
- D. Serum calcium of 7.8 mg/dL
Correct answer: D
Rationale: The correct answer is D. A serum calcium level of 7.8 mg/dL requires immediate intervention due to the risk of hypocalcemia. Hypocalcemia can lead to serious complications such as tetany, seizures, and cardiac arrhythmias. The other laboratory findings are within normal limits or slightly elevated, which do not pose an immediate threat to the client's health in this scenario.
2. A client in acute renal failure has a serum potassium of 7.5 mEq/L. Based on this finding, the nurse should anticipate implementing which action?
- A. Administer an IV of normal saline rapidly and NPH insulin subcutaneously.
- B. Administer a retention enema of Kayexalate.
- C. Add 40 mEq of KCL (potassium chloride) to the present IV solution.
- D. Administer a lidocaine bolus IV push.
Correct answer: B
Rationale: In acute renal failure with a high serum potassium level, the priority intervention is to lower potassium levels to prevent complications like cardiac arrhythmias. Administering a retention enema of Kayexalate is the correct action as it helps lower high potassium levels by exchanging sodium for potassium in the intestines. Options A, C, and D are incorrect. Administering normal saline rapidly and NPH insulin or adding more potassium to the IV solution can further increase potassium levels, worsening the condition. Lidocaine is not indicated for treating hyperkalemia.
3. A client who has had three spontaneous abortions is requesting information about possible causes. The nurse's response should be based on which information?
- A. Chromosomal abnormalities are the most common cause of early spontaneous abortions
- B. Incompetent cervix can cause spontaneous abortions
- C. An infection can cause spontaneous abortions
- D. Nutritional deficiencies are the most common cause of early spontaneous abortions
Correct answer: A
Rationale: The correct answer is A: Chromosomal abnormalities are the most common cause of early spontaneous abortions. Spontaneous abortions, also known as miscarriages, often occur due to chromosomal abnormalities in the fetus. These abnormalities are a common cause of early pregnancy loss. Choice B is incorrect because an incompetent cervix typically leads to late miscarriages, not early spontaneous abortions. Choice C is incorrect as while infections can be a cause of spontaneous abortions, they are not the most common cause. Choice D is incorrect as nutritional deficiencies are not the most common cause of early spontaneous abortions.
4. Nurses working in labor and delivery are demanding a change in policy because they believe they are required to float more often than nurses on other units. However, floating to labor and delivery is not reciprocated because other nurses are not competent to provide highly specialized obstetrical skills. What action is best for the nurse-manager to implement?
- A. Require cross-training for obstetrics for other nurses
- B. Propose a method for self-staffing labor and delivery
- C. Remind nurses that floating is an administrative policy
- D. Encourage nurses to share their feelings with administration
Correct answer: B
Rationale: The best action for the nurse-manager to implement is to propose a method for self-staffing labor and delivery. This approach allows nurses to manage their schedules, ensuring a fair balance of workloads. Requiring cross-training for obstetrics for other nurses (Choice A) may not be feasible or necessary for all units. Reminding nurses that floating is an administrative policy (Choice C) does not address the underlying issue of workload balance. Encouraging nurses to share their feelings with administration (Choice D) may not lead to a concrete solution for the unequal floating concerns.
5. A client with diabetes mellitus reports feeling dizzy and has a blood glucose level of 50 mg/dl. What action should the nurse take first?
- A. Administer 1 mg of glucagon intramuscularly
- B. Provide 15 grams of carbohydrate
- C. Check the client's blood pressure
- D. Notify the healthcare provider
Correct answer: B
Rationale: Providing 15 grams of carbohydrate is the initial action to treat hypoglycemia. When a client with diabetes mellitus experiences symptoms of hypoglycemia, such as dizziness and with a blood glucose level of 50 mg/dl, the immediate priority is to raise their blood sugar levels quickly. Administering carbohydrates, such as fruit juice or glucose tablets, is the recommended first step to reverse hypoglycemia. Administering glucagon intramuscularly is usually reserved for severe hypoglycemia when the client is unconscious or unable to swallow. Checking the client's blood pressure is important but not the primary intervention for hypoglycemia. Notifying the healthcare provider can be done after the immediate management of hypoglycemia.
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