HESI RN
HESI Medical Surgical Practice Exam
1. Which of the following is a sign of hypocalcemia?
- A. Hyperactive reflexes.
- B. Depressed reflexes.
- C. Muscle cramps.
- D. Seizures.
Correct answer: A
Rationale: Hyperactive reflexes are a classic sign of hypocalcemia. Hypocalcemia leads to increased neuromuscular excitability, resulting in hyperactive reflexes. Depressed reflexes (Choice B) are not typically associated with hypocalcemia. Muscle cramps (Choice C) can be seen in hypocalcemia due to muscle irritability but are not a specific sign. Seizures (Choice D) can occur in severe cases of hypocalcemia but are not as common as hyperactive reflexes.
2. The nurse is preparing to give a dose of a cephalosporin medication to a patient who has been receiving the antibiotic for 2 weeks. The nurse notes ulcers on the patient’s tongue and buccal mucosa. Which action will the nurse take?
- A. Hold the drug and notify the provider.
- B. Obtain an order to culture the oral lesions.
- C. Gather emergency equipment to prepare for anaphylaxis.
- D. Report a possible superinfection side effect of the cephalosporin.
Correct answer: D
Rationale: The nurse should report a possible superinfection side effect of the cephalosporin to the physician as the patient's symptoms may indicate a superinfection that requires treatment. Holding the drug is not necessary unless directed by the provider. Culturing the lesions is not indicated for this situation. There is no evidence to suggest impending anaphylaxis based on the patient's symptoms.
3. A client who has heart failure is admitted with a serum potassium level of 2.9 mEq/L. Which action is most important for the nurse to implement?
- A. Administer 20 mEq of potassium chloride.
- B. Initiate continuous cardiac monitoring.
- C. Arrange a consultation with the dietitian.
- D. Educate about the side effects of diuretics.
Correct answer: B
Rationale: Hypokalemia, defined as a serum potassium level below the normal range of 3.5 to 5 mEq/L, can lead to changes in myocardial irritability and ECG waveform, potentially causing life-threatening dysrhythmias. Therefore, the priority action for the nurse is to initiate continuous cardiac monitoring to promptly detect any abnormal heart rhythms or ventricular ectopy. This monitoring is crucial for assessing the impact of potassium replacement therapy on the cardiac rhythm and ensuring the safety of the client. While administering potassium chloride is important for correcting the hypokalemia, it should occur after cardiac monitoring is in place. Consulting with a dietitian and educating about diuretic side effects are relevant aspects of care but are not the immediate priority in this situation where cardiac monitoring takes precedence for timely intervention.
4. Which of the following is a common complication of immobility?
- A. Muscle hypertrophy.
- B. Pressure ulcers.
- C. Bone fractures.
- D. Joint stiffness.
Correct answer: B
Rationale: The correct answer is B, Pressure ulcers. Immobility can lead to pressure ulcers due to prolonged pressure on the skin, especially over bony prominences. Muscle hypertrophy (Choice A) is not a common complication of immobility; instead, muscle atrophy is more likely to occur due to disuse. Bone fractures (Choice C) can result from trauma but are not directly associated with immobility unless there is a fall or accident. Joint stiffness (Choice D) can develop due to lack of movement but is not as common or severe as pressure ulcers in cases of prolonged immobility.
5. Which of the following is a key symptom of appendicitis?
- A. Right lower quadrant pain.
- B. Left lower quadrant pain.
- C. Generalized abdominal pain.
- D. Rebound tenderness.
Correct answer: A
Rationale: Corrected Choice A: Right lower quadrant pain is a classic and key symptom of appendicitis. Pain in the right lower quadrant is typically the initial symptom and is a result of inflammation and irritation of the appendix. This pain can start around the umbilicus and then migrate to the right lower quadrant. It is important to note that appendicitis rarely presents with pain in the left lower quadrant or generalized abdominal pain. Rebound tenderness, indicated in Choice D, is a sign of peritoneal irritation and is associated with appendicitis, but it is not as characteristic as the right lower quadrant pain in the initial presentation of appendicitis.
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