HESI RN
HESI Medical Surgical Exam
1. The client with diabetes mellitus should be cautioned by the nurse taking a sulfonylurea that alcoholic beverages should be avoided while taking these drugs because they can cause which of the following?
- A. Hypokalemia.
- B. Hyperkalemia.
- C. Hypocalcemia.
- D. Disulfiram (Antabuse)-like symptoms.
Correct answer: D
Rationale: The correct answer is D: Disulfiram (Antabuse)-like symptoms. When a client with diabetes mellitus taking a sulfonylurea consumes alcohol, it can lead to disulfiram-like symptoms, such as nausea, flushing, and palpitations. Choice A, hypokalemia, is incorrect because sulfonylureas do not typically lead to low potassium levels. Choice B, hyperkalemia, is incorrect as sulfonylureas are not associated with high potassium levels. Choice C, hypocalcemia, is also incorrect because sulfonylureas are not known to cause low calcium levels.
2. The patient is beginning furosemide and has started a 2-week course of a steroid medication. What should the nurse recommend?
- A. Avoid consuming licorice to prevent excess potassium loss.
- B. Report a urine output less than 600 mL/24 hours.
- C. Obtain an order for a potassium supplement.
- D. Take the furosemide in the morning.
Correct answer: C
Rationale: When a patient is taking furosemide and a steroid medication, there is an increased risk of potassium loss due to the interaction between the two drugs. Consuming licorice should be avoided as it can worsen potassium loss. Reporting a urine output less than 600 mL/24 hours is not directly related to the drug interaction and may not be necessary. Taking furosemide at bedtime is not the primary concern when a patient is concurrently on a steroid medication and furosemide. Therefore, obtaining an order for a potassium supplement is the most appropriate recommendation to counteract the potential potassium loss.
3. A client has undergone insertion of a permanent pacemaker. When developing a discharge teaching plan, the nurse writes a goal of, 'The client will verbalize symptoms of pacemaker failure.' Which symptoms are most important to teach the client?
- A. Facial flushing.
- B. Fever.
- C. Pounding headache.
- D. Feelings of dizziness.
Correct answer: D
Rationale: The correct answer is 'D: Feelings of dizziness.' Feelings of dizziness may occur as a result of a decreased heart rate, leading to decreased cardiac output, which can be an indication of pacemaker failure. Teaching the client to recognize symptoms of decreased cardiac output, like dizziness, is crucial for early detection of pacemaker malfunction. Choices A, B, and C are less specific to pacemaker failure and are not commonly associated with this condition. Facial flushing, fever, and pounding headache are not typical signs of pacemaker failure and are not directly related to cardiac output, making them less relevant for teaching the client about pacemaker failure.
4. Why is lactated Ringer’s solution given to a patient experiencing vomiting and diarrhea?
- A. To increase interstitial and intracellular hydration
- B. To maintain plasma volume over time
- C. To pull water from the interstitial space into the extracellular fluid
- D. To replace water and electrolytes
Correct answer: D
Rationale: Lactated Ringer’s solution is an isotonic solution commonly used to replace water and electrolytes lost due to conditions like vomiting and diarrhea. It helps to restore fluid balance by replacing the lost volume and electrolytes. Option A is incorrect because hypotonic fluids, not lactated Ringer’s solution, increase interstitial and intracellular hydration. Option B is incorrect as colloidal solutions, not lactated Ringer’s solution, are used to maintain plasma volume over time. Option C is incorrect as hypertonic solutions, not lactated Ringer’s solution, pull water from the interstitial space into the extracellular fluid.
5. A client with chronic obstructive pulmonary disease (COPD) who is beginning oxygen therapy asks the nurse why the flow rate cannot be increased to more than 2 L/min. The nurse responds that this would be harmful because it could:
- A. Be drying to nasal passages
- B. Decrease the client’s oxygen-based respiratory drive
- C. Increase the risk of pneumonia due to drier air passages
- D. Decrease the client’s carbon dioxide–based respiratory drive
Correct answer: B
Rationale: Increasing the oxygen flow rate beyond 2 L/min for a client with COPD can decrease the client's oxygen-based respiratory drive. In clients with COPD, the natural respiratory drive is based on the level of oxygen instead of carbon dioxide, as seen in healthy individuals. Increasing the oxygen level independently can suppress the drive to breathe, leading to respiratory failure. Choices A, C, and D are incorrect because drying of nasal passages, increased risk of pneumonia due to drier air passages, and decreasing the carbon dioxide-based respiratory drive are not the primary concerns associated with increasing the oxygen flow rate in a client with COPD.
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