HESI RN
HESI Fundamentals Practice Exam
1. A client with a diagnosis of hyperkalemia is receiving sodium polystyrene sulfonate (Kayexalate). Which laboratory value should the nurse monitor to evaluate the effectiveness of this medication?
- A. Serum sodium level.
- B. Serum potassium level.
- C. Serum calcium level.
- D. Serum glucose level.
Correct answer: B
Rationale: The correct answer is B: Serum potassium level. Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Monitoring the serum potassium level allows the nurse to assess the effectiveness of this medication in lowering the elevated potassium levels. Serum sodium (A), calcium (C), and glucose (D) levels are not directly impacted by the action of sodium polystyrene sulfonate.
2. The client has removed the covering from an ice pack applied to his knee. What action should the nurse take first?
- A. Observe the appearance of the skin under the ice pack.
- B. Instruct the client regarding the importance of the covering.
- C. Reapply the covering after filling it with fresh ice.
- D. Ask the client how long the ice pack was applied to the skin.
Correct answer: A
Rationale: The primary action for the nurse is to assess the skin under the ice pack to check for any potential thermal injury. This assessment is crucial to ensure the client's safety. Once the skin assessment is done and no harm is found, the nurse can proceed with other necessary actions such as providing instructions to the client or replacing the covering with fresh ice.
3. A client is admitted with a diagnosis of right-sided heart failure. What assessment finding should the nurse anticipate?
- A. Jugular vein distention.
- B. Crackles in the lungs.
- C. Peripheral edema.
- D. Hepatomegaly.
Correct answer: C
Rationale: In right-sided heart failure, the heart's inability to effectively pump blood to the lungs leads to fluid backup in the systemic circulation, resulting in peripheral edema (swelling in lower extremities). While jugular vein distention (A) and hepatomegaly (D) can also occur in right-sided heart failure, peripheral edema is a hallmark sign due to fluid retention. Crackles in the lungs (B) are more commonly associated with left-sided heart failure, where fluid accumulates in the lungs.
4. When assessing for orthostatic hypotension during blood pressure measurement, what action should the nurse implement first?
- A. Position the client supine for a few minutes
- B. Assist the client to stand at the bedside
- C. Apply the blood pressure cuff securely
- D. Record the client’s pulse rate and rhythm
Correct answer: A
Rationale: When assessing for orthostatic hypotension, the initial step is to position the client supine for a few minutes. This allows the body to adjust to the supine position before assessing blood pressure changes that may indicate orthostatic hypotension. By observing the blood pressure after the client has rested supine, the nurse can accurately assess for any drop in blood pressure upon standing, which is indicative of orthostatic hypotension. Choices B, C, and D are incorrect as they do not address the initial step in assessing for orthostatic hypotension, which is ensuring the client is positioned correctly to detect blood pressure changes upon standing.
5. A client with a diagnosis of deep vein thrombosis (DVT) is receiving anticoagulation therapy. Which statement by the client indicates a need for further teaching?
- A. I should avoid eating green leafy vegetables.
- B. I should wear loose-fitting clothes to avoid pressure on my legs.
- C. I should avoid prolonged sitting or standing.
- D. I should continue taking my over-the-counter herbal supplements.
Correct answer: D
Rationale: The statement 'I should continue taking my over-the-counter herbal supplements' (D) indicates a need for further teaching because some herbal supplements can interact with anticoagulants, increasing the risk of bleeding. It is crucial to inform healthcare providers about all medications, including herbal supplements, to prevent adverse interactions. The other statements reflect appropriate understanding of precautions related to DVT and anticoagulation therapy.
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