HESI RN
HESI 799 RN Exit Exam
1. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which intervention should the nurse implement first?
- A. Administer intravenous calcium gluconate.
- B. Administer intravenous insulin and glucose.
- C. Administer intravenous sodium bicarbonate.
- D. Administer a loop diuretic as prescribed.
Correct answer: B
Rationale: The correct answer is to administer intravenous insulin and glucose first. This intervention helps drive potassium back into the cells, lowering serum levels effectively. Administering intravenous calcium gluconate (choice A) is used to stabilize cardiac membranes in severe hyperkalemia but does not address the underlying cause. Administering intravenous sodium bicarbonate (choice C) is used in metabolic acidosis, not hyperkalemia. Administering a loop diuretic (choice D) can help eliminate potassium but is not the first-line treatment for hyperkalemia in CKD.
2. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which clinical finding is most concerning?
- A. Serum glucose of 500 mg/dL
- B. Serum glucose of 600 mg/dL
- C. Serum potassium of 5.5 mEq/L
- D. Serum bicarbonate of 18 mEq/L
Correct answer: D
Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with DKA as it indicates metabolic acidosis, requiring immediate intervention. In DKA, the body produces excess ketones, leading to metabolic acidosis. A low serum bicarbonate level is a key indicator of this acid-base imbalance. Elevated serum glucose levels are expected in DKA but are managed through insulin therapy. Serum potassium levels can fluctuate in DKA due to insulin deficiency, but a value of 5.5 mEq/L is not as immediately concerning as metabolic acidosis. Therefore, the most critical finding in this scenario is the low serum bicarbonate level.
3. To reduce staff nurse role ambiguity, which strategy should the nurse-manager implement?
- A. Review the staff nurse job description to ensure that it is clear, accurate, and current.
- B. Conduct regular meetings to clarify roles.
- C. Increase communication between team members.
- D. Provide additional training for new nurses.
Correct answer: A
Rationale: The correct answer is A: Review the staff nurse job description to ensure that it is clear, accurate, and current. By ensuring that job descriptions are clear and up-to-date, nurse-managers can reduce ambiguity and confusion about roles and responsibilities. Choice B, conducting regular meetings to clarify roles, may help but may not address the root cause of ambiguity. Choice C, increasing communication between team members, is important but may not specifically target role ambiguity. Choice D, providing additional training for new nurses, is valuable but may not directly address role ambiguity among existing staff.
4. An adult female client is admitted to the psychiatric unit with a diagnosis of major depressive disorder. The nurse notices the client has more energy and is giving her belongings away. Which intervention is best for the nurse to implement?
- A. Support the client by praising her progress.
- B. Ask the client if she has had any recent thoughts of harming herself.
- C. Reassure the client about the effectiveness of antidepressant drugs.
- D. Advise the client to keep her belongings for discharge.
Correct answer: B
Rationale: The correct intervention is to ask the client if she has had any recent thoughts of harming herself because increased energy and giving away belongings can be signs of suicidal ideation. Choice A is incorrect as it does not address the potential risk of self-harm. Choice C is incorrect because reassurance about medication effectiveness may not be appropriate in this situation. Choice D is incorrect as it dismisses the client's current behavior without addressing the underlying concern of potential self-harm.
5. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value is most concerning?
- A. INR of 3.0
- B. Prothrombin time (PT) of 15 seconds
- C. Hemoglobin of 10 g/dl
- D. White blood cell count
Correct answer: A
Rationale: An INR of 3.0 is most concerning in a client prescribed warfarin (Coumadin) as it indicates a high risk of bleeding, requiring immediate intervention. A high INR value suggests that the blood is taking longer to clot, putting the patient at an increased risk of hemorrhage. Prothrombin time (PT) measures how long it takes for blood to clot, but the specific value of 15 seconds is within the normal range. Hemoglobin of 10 g/dl indicates mild anemia and does not directly relate to the risk of bleeding associated with warfarin therapy. White blood cell count assesses immune function and infection risk, but it is not directly related to the anticoagulant effects of warfarin.
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