HESI RN
Evolve HESI Medical Surgical Practice Exam
1. The nurse is caring for several patients who are receiving antibiotics. Which order will the nurse question?
- A. Azithromycin (Zithromax) 500 mg IV in 500 mL of fluid
- B. Azithromycin (Zithromax) 500 mg PO once daily
- C. Erythromycin 300 mg IM QID
- D. Erythromycin 300 mg PO QID
Correct answer: C
Rationale: The nurse should question the order for Erythromycin 300 mg IM QID. Erythromycin and other macrolides should not be given intramuscularly because they cause painful tissue irritation. Options A and B are correct routes for Azithromycin, either intravenously or orally. Option D is a correct route for Erythromycin, which is orally.
2. A patient’s serum osmolality is 305 mOsm/kg. Which term describes this patient’s body fluid osmolality?
- A. Iso-osmolar
- B. Hypo-osmolar
- C. Hyperosmolar
- D. Isotonic
Correct answer: C
Rationale: The correct term to describe a patient with a serum osmolality of 305 mOsm/kg is 'hyperosmolar.' Normal osmolality ranges from 280 to 300 mOsm/kg. A patient with an osmolality above this range is considered hyperosmolar. Choice A ('Iso-osmolar') implies an equal osmolality, which is not the case in this scenario. Choice B ('Hypo-osmolar') suggests a lower osmolality, which is incorrect based on the provided serum osmolality value. Choice D ('Isotonic') refers to a solution having the same osmolality as another solution, not describing the specific scenario of this patient being above the normal range.
3. A 57-year-old male client is scheduled to have a stress-thallium test the following morning and is NPO after midnight. At 0130, he is agitated because he cannot eat and is demanding food. Which response is best for the nurse to provide to this client?
- A. I'm sorry sir, you have a prescription for nothing by mouth from midnight tonight.
- B. I will let you have one cracker, but that is all you can have for the rest of tonight.
- C. What did the healthcare provider tell you about the test you are having tomorrow?
- D. The test you are having tomorrow requires that you have nothing by mouth tonight.
Correct answer: D
Rationale: Being direct and explaining to the client that the test requires him to be NPO, is the most therapeutic statement because the nurse is responding to the client's question and providing him the reason why.
4. Oxygen via nasal cannula has been prescribed for a client with emphysema. The nurse checks the physician’s orders to ensure that the prescribed flow is not greater than:
- A. 1 L/min
- B. 3 L/min
- C. 4 L/min
- D. 6 L/min
Correct answer: B
Rationale: The correct answer is B, 3 L/min. Clients with emphysema typically receive oxygen at a flow rate of 1 to 2 L/min, with a maximum of 3 L/min. Higher flow rates can lead to oxygen toxicity in these clients, so it's crucial to adhere to the prescribed limits. Choice A (1 L/min) is too low and may not provide adequate oxygenation for the client. Choices C (4 L/min) and D (6 L/min) exceed the recommended flow rates for clients with emphysema and can increase the risk of oxygen toxicity.
5. Which of the following is the best position for a patient experiencing dyspnea?
- A. Supine position.
- B. Fowler's position.
- C. Trendelenburg position.
- D. Lateral recumbent position.
Correct answer: B
Rationale: Fowler's position is the best position for a patient experiencing dyspnea. This position involves sitting the patient upright with the head of the bed elevated between 45-60 degrees. Fowler's position helps improve breathing in patients with dyspnea by promoting lung expansion, aiding in better oxygenation, and reducing the work of breathing. The supine position (Choice A) may worsen dyspnea by limiting lung expansion. The Trendelenburg position (Choice C) with the feet elevated and the head down is not recommended for dyspnea as it can increase pressure on the chest and compromise breathing. The lateral recumbent position (Choice D) is not ideal for dyspnea as it does not provide optimal lung expansion and may not alleviate breathing difficulty.
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