HESI RN
HESI Medical Surgical Specialty Exam
1. A client is brought to the emergency department by a neighbor. The client is lethargic and has a fruity odor on the breath. The client’s arterial blood gas (ABG) results are pH 7.25, PCO2 34 mm Hg, PO2 86 mm Hg, HCO3 14 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: A
Rationale: The correct answer is 'Metabolic acidosis.' Metabolic acidosis is characterized by a low pH (<7.35) and a low bicarbonate level (HCO3 <22 mEq/L). In this case, the client's ABG results show a pH of 7.25 and an HCO3 level of 14 mEq/L, indicating metabolic acidosis. The PCO2 of 34 mm Hg is normal, ruling out respiratory acidosis or alkalosis. The PO2 of 86 mm Hg is also within the normal range and is not indicative of a respiratory problem. Therefore, the client is experiencing metabolic acidosis based on the ABG results provided.
2. The patient is taking hydrochlorothiazide (HydroDIURIL) and digoxin (Lanoxin). Which potential electrolyte imbalance will the nurse monitor for in this patient?
- A. Hypermagnesemia
- B. Hypernatremia
- C. Hypocalcemia
- D. Hypokalemia
Correct answer: D
Rationale: The correct answer is D: Hypokalemia. Thiazide diuretics like hydrochlorothiazide can cause hypokalemia. Hypokalemia enhances the effects of digoxin, leading to digoxin toxicity. Thiazides can also cause hypercalcemia. Choices A, B, and C are incorrect. Hypermagnesemia is not typically associated with hydrochlorothiazide use. Hypernatremia and hypocalcemia are not the primary electrolyte imbalances to monitor for in this scenario.
3. When a young client being taught to use an inhaler for asthma symptoms states the intention to use the inhaler but plans to continue smoking cigarettes, what is the best initial action by the nurse?
- A. Inform the healthcare provider of the client's statement.
- B. Explain that denial of illness can interfere with the treatment regimen.
- C. Revise the plan of care based on the client's plans to continue smoking.
- D. Review factors surrounding the client's beliefs about smoking cessation.
Correct answer: B
Rationale: The best initial action by the nurse when a client expresses plans to use an inhaler for asthma symptoms but continue smoking cigarettes is to address denial. By explaining that denial of illness can interfere with the treatment regimen, the nurse educates the client about the impact of smoking on asthma treatment. This approach helps the client understand the importance of smoking cessation in managing asthma symptoms. Informing the healthcare provider (Choice A) may be necessary but is not the initial action in this scenario. Revising the plan of care (Choice C) should be considered after addressing the client's denial and educating them. Reviewing factors surrounding the client's beliefs about smoking cessation (Choice D) is relevant but not the best initial action when denial is identified.
4. The nurse notes that the only ECG for a 55-year-old male client scheduled for surgery in two hours is dated two years ago. The client reports that he has a history of 'heart trouble,' but has no problems at present. Hospital protocol requires that those over 50 years of age have a recent ECG prior to surgery. What nursing action is best for the nurse to implement?
- A. Ask the client to explain what he means by 'heart trouble.'
- B. Call for an ECG to be performed immediately.
- C. Notify surgery that the ECG is over two years old.
- D. Notify the client's surgeon immediately.
Correct answer: B
Rationale: In this scenario, the client is 55 years old with a history of 'heart trouble,' which necessitates a recent ECG before surgery as per hospital policy. The nurse should prioritize patient safety and adhere to the protocol by arranging for an ECG to be performed immediately. Option A is not the best initial action as the focus should be on obtaining the necessary test first. Option C is not the immediate action required, and option D is premature without obtaining the necessary ECG first.
5. The client with chronic renal failure is on a fluid restriction. Which of the following statements by the client indicates that the teaching has been effective?
- A. I will limit my fluid intake to prevent fluid overload.
- B. I can drink as much fluid as I want as long as I take my medication.
- C. I will skip dialysis sessions if I feel tired.
- D. I will limit my fluid intake to 1 liter per day.
Correct answer: A
Rationale: Choice A is the correct answer because it demonstrates the client's understanding of the need to limit fluid intake to prevent fluid overload, which is crucial in managing chronic renal failure. Adequate fluid restriction is essential to prevent complications such as fluid overload and electrolyte imbalances. Choice B is incorrect as it promotes excessive fluid intake, which can worsen the client's condition by putting additional stress on the kidneys. Choice C is incorrect as skipping dialysis sessions can lead to a buildup of toxins in the body, worsening renal failure and potentially leading to life-threatening complications. Choice D is incorrect because limiting fluid intake to a specific volume may not be appropriate for all clients and can vary depending on individual needs, medical condition, and healthcare provider recommendations.
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