HESI RN
HESI Medical Surgical Test Bank
1. The healthcare provider prescribes diagnostic tests for a client with pneumonia identified on a chest X-ray. Which diagnostic test should the nurse review for implementation to guide the most therapeutic treatment of pneumonia?
- A. Sputum culture and sensitivity
- B. Blood cultures
- C. Arterial blood gases (ABG)
- D. Computerized tomography (CT) of the chest
Correct answer: A
Rationale: Sputum culture and sensitivity is the most appropriate diagnostic test for pneumonia as it helps in identifying the causative organism, which is crucial for guiding the selection of the most effective antibiotic therapy. Blood cultures (choice B) are more useful in identifying systemic infections rather than pneumonia specifically. Arterial blood gases (ABG) (choice C) are helpful in assessing oxygenation but do not directly aid in identifying the causative organism. Computerized tomography (CT) of the chest (choice D) is useful for evaluating structural abnormalities in the lungs but is not the initial test of choice for diagnosing pneumonia.
2. A client with chronic obstructive pulmonary disease (COPD) presented with shortness of breath. Oxygen therapy was started at 2 liters/minute via nasal cannula. The arterial blood gases (ABGs) after treatment were pH 7.36, PaO2 62, PaCO2 59, and HCO3. Which statement describes the most likely cause of the simultaneous increase in both the PaO2 and the PaCO2?
- A. The hypercapnia resulted from the rapid respirations.
- B. The hypoxic drive was reduced by the oxygen therapy.
- C. The client had a pneumothorax which restricted ventilation.
- D. The client had a pulmonary embolism that reduced perfusion.
Correct answer: B
Rationale: In patients with COPD, oxygen therapy can reduce the hypoxic drive, which is the primary stimulus for breathing in these individuals. By providing supplemental oxygen, the hypoxic drive is diminished, resulting in decreased respiratory effort. As a consequence, the PaO2 may increase due to the supplemental oxygen, but this can lead to a decrease in the respiratory drive and subsequent retention of carbon dioxide, causing an increase in PaCO2 levels. Option A is incorrect because rapid respirations would typically lower PaCO2 levels. Option C is incorrect as a pneumothorax would lead to impaired gas exchange and decreased PaO2 levels without necessarily affecting PaCO2 levels. Option D is incorrect as a pulmonary embolism would typically result in ventilation-perfusion mismatch and decreased PaO2 levels without directly impacting PaCO2 levels.
3. Which instruction should be included in the discharge teaching plan for a client who underwent cataract extraction today?
- A. Use a metal eye shield on the operative eye during the day.
- B. Administer eye ointment before applying eye drops.
- C. Sexual activities may be resumed after returning home.
- D. Light housekeeping is safe to do, but avoid heavy lifting.
Correct answer: D
Rationale: The correct instruction to include in the discharge teaching plan for a client who underwent cataract extraction is to advise them that light housekeeping is safe to do, but they should avoid heavy lifting. Heavy lifting can strain the surgical site and potentially lead to complications. Choice A is incorrect as a metal eye shield is usually recommended during sleep, not during the day. Choice B is incorrect because eye ointment should typically be administered after applying eye drops to prevent dilution of the medication. Choice C is incorrect as sexual activities should usually be avoided for a specific period post-surgery as advised by the healthcare provider.
4. A nurse is assessing a postoperative client on an hourly basis. The nurse notes that the client’s urine output for the past hour was 25 mL. Based on this finding, the nurse first:
- A. Calls the physician
- B. Increases the rate of the IV infusion
- C. Checks the client’s overall intake and output record
- D. Administers a 250-mL bolus of normal saline solution (0.9%)
Correct answer: C
Rationale: Clients are at risk of hypovolemia postoperatively, and decreased urine output can be an early sign. However, to accurately interpret this finding, the nurse must assess the overall fluid balance by checking the client’s intake and output records. Increasing the IV infusion rate or administering a bolus of normal saline solution without a physician's order would not be appropriate as these interventions require a prescription. The physician should be notified once the nurse has collected all necessary assessment data, including fluid status and vital signs.
5. When planning activities for a socialization group for older residents of a long-term facility, what information would be most useful for the nurse?
- A. The length of time each resident has resided at the facility.
- B. A brief description of each resident's family life.
- C. The age of each resident.
- D. The usual activity patterns of each resident.
Correct answer: D
Rationale: The most useful information for the nurse when planning activities for a socialization group for older residents of a long-term facility would be the usual activity patterns of each resident. An older person's level of activity is a determining factor in adjustment to aging, as described by the Activity Theory of Aging. By understanding the usual activity patterns of each resident, the nurse can tailor activities that cater to their interests and abilities, promoting social engagement and overall well-being. The other options, such as the length of time residing at the facility, a brief description of family life, or the age of each resident, may provide some insights but do not directly relate to planning activities that support adjustment to aging and socialization within the group.
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