HESI RN
Evolve HESI Medical Surgical Practice Exam
1. The nurse is caring for a patient who is receiving an intravenous antibiotic. The nurse notes that the provider has ordered serum drug peak and trough levels. The nurse understands that these tests are necessary for which type of drugs?
- A. Drugs with a broad spectrum
- B. Drugs with a narrow spectrum
- C. Drugs with a broad therapeutic index
- D. Drugs with a narrow therapeutic index
Correct answer: D
Rationale: Medications with a narrow therapeutic index have a limited range between the therapeutic dose and a toxic dose. It is important to monitor these medications closely by evaluating regular serum peak and trough levels. Drugs with a narrow spectrum (Choice B) are antibiotics that target only a limited group of bacteria, not related to the need for peak and trough monitoring. Drugs with a broad spectrum (Choice A) cover a wide range of bacteria, but this characteristic does not determine the need for peak and trough monitoring. Drugs with a broad therapeutic index (Choice C) have a wide safety margin between therapeutic and toxic doses, so they typically do not require peak and trough level monitoring.
2. A client with functional urinary incontinence is being taught by a nurse. Which statement should the nurse include in this client’s teaching?
- A. Clean around your catheter daily with soap and water.
- B. Wash the vaginal weights with a 10% bleach solution after each use.
- C. Informing about available operations to repair your bladder.
- D. Buy slacks with elastic waistbands that are easy to pull down.
Correct answer: D
Rationale: Functional urinary incontinence is not related to bladder issues but rather to difficulties with ambulation or accessing the toilet. The goal is to help the client manage clothing independently. Elastic waistband slacks that are easy to pull down facilitate timely access to the toilet. Choices A and B are unrelated and not applicable to functional urinary incontinence. Choice C is incorrect as surgeries to repair the bladder are not indicated for functional urinary incontinence.
3. The patient is receiving sulfadiazine. The healthcare provider knows that this patient’s daily fluid intake should be at least which amount?
- A. 1000 mL/day
- B. 1200 mL/day
- C. 2000 mL/day
- D. 2400 mL/day
Correct answer: C
Rationale: Sulfadiazine may lead to crystalluria, a condition where crystals form in the urine. Adequate fluid intake helps prevent this adverse effect by ensuring urine is dilute enough to prevent crystal formation. The recommended daily fluid intake for a patient receiving sulfadiazine is at least 2000 mL/day. Choices A, B, and D are incorrect because they do not provide a sufficient amount of fluid intake to prevent crystalluria in patients on sulfadiazine.
4. When providing care for an unconscious client who has seizures, which nursing intervention is most essential?
- A. Ensure oral suction is available.
- B. Maintain the client in a semi-Fowler's position.
- C. Provide frequent mouth care.
- D. Keep the room at a comfortable temperature.
Correct answer: A
Rationale: During seizures in an unconscious client, ensuring oral suction is available is crucial to managing secretions and preventing aspiration. This intervention helps maintain a clear airway and reduce the risk of complications. Maintaining the client in a semi-Fowler's position (Choice B) may be important for airway management but is not as critical as having oral suction ready. Providing frequent mouth care (Choice C) and keeping the room at a comfortable temperature (Choice D) are important aspects of overall care but are not as urgently needed as ensuring oral suction for managing secretions during seizures.
5. Blood for arterial blood gas determinations is drawn from a client with pneumonia, and testing reveals a pH of 7.45, PCO2 of 30 mm Hg, and HCO3 of 19 mEq/L. The nurse interprets these results as indicative of:
- A. Compensated metabolic acidosis
- B. Compensated respiratory alkalosis
- C. Uncompensated metabolic alkalosis
- D. Uncompensated respiratory acidosis
Correct answer: B
Rationale: The correct answer is 'Compensated respiratory alkalosis.' In this case, the client's pH is within the normal range (7.35-7.45), indicating compensation. The low PCO2 (30 mm Hg) suggests respiratory alkalosis, while the low HCO3 (19 mEq/L) is also consistent with a compensatory response. Therefore, the client has a primary respiratory alkalosis that is being compensated for by metabolic acidosis. Choices A, C, and D are incorrect because they do not fit the pattern of the given blood gas values, which indicate respiratory alkalosis with metabolic compensation.
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