HESI RN
HESI Medical Surgical Exam
1. Which of the following is an expected finding in a patient with hypothyroidism?
- A. Weight gain.
- B. Weight loss.
- C. Increased appetite.
- D. Diarrhea.
Correct answer: A
Rationale: Weight gain is an expected finding in hypothyroidism due to the decreased metabolic rate. Hypothyroidism leads to a slowing down of bodily functions, including metabolism, which can result in weight gain. Weight loss (Choice B) is more commonly associated with hyperthyroidism where there is an increase in metabolic rate. Increased appetite (Choice C) is also more typical of hyperthyroidism as the body is burning energy at a faster rate. Diarrhea (Choice D) is not a typical symptom of hypothyroidism; instead, constipation is more often observed due to the slowing down of the digestive system.
2. A client who is mouth breathing is receiving oxygen by face mask. The nursing assistant asks the nurse why a water bottle is attached to the oxygen tubing near the wall oxygen outlet. The nurse responds that the primary purpose of the water is to:
- A. Prevent the client from getting a nosebleed
- B. Give the client added fluid by way of the respiratory tree
- C. Humidify the oxygen that is bypassing the client’s nose
- D. Prevent fluid loss from the lungs during mouth breathing
Correct answer: C
Rationale: The purpose of the water bottle is to humidify the oxygen that is bypassing the nose during mouth breathing. When a client breathes through the mouth, the oxygen delivered by the face mask bypasses the natural humidification provided by the nasal passages. Therefore, the water bottle attachment helps to add moisture to the oxygen, preventing dryness and irritation to the respiratory tract. Choices A, B, and D are incorrect. Clients breathing through the mouth are not at risk for nosebleeds, do not receive added fluid through the respiratory tree, and do not experience fluid loss from the lungs due to mouth breathing.
3. The nurse is caring for a client who is postoperative for a femoral head fracture repair. Which intervention(s) should the nurse plan to administer for deep vein thrombosis prophylaxis?
- A. Pneumatic compression devices
- B. Incentive spirometry
- C. Assisted ambulation
- D. Calf-pump exercises
Correct answer: A
Rationale: The correct intervention for deep vein thrombosis prophylaxis in a postoperative client with a femoral head fracture repair is the use of pneumatic compression devices. These devices help prevent stasis in the lower extremities by promoting venous return through intermittent compression. Incentive spirometry is used to prevent respiratory complications by promoting lung expansion and clearing secretions, not for DVT prophylaxis. Assisted ambulation and calf-pump exercises are beneficial for promoting circulation and preventing DVT, but pneumatic compression devices are more effective in this specific postoperative scenario.
4. A client has just returned to the nursing unit after computerized tomography (CT) with contrast medium. Which of the following actions should the nurse plan to take as part of routine after-care for this client?
- A. Administering a laxative
- B. Encouraging fluid intake
- C. Maintaining the client on strict bed rest
- D. Holding all medications for at least 2 hours
Correct answer: B
Rationale: After CT scanning with contrast medium, the client does not require special restrictions or interventions. Encouraging fluid intake is important to help flush out the contrast dye and prevent dehydration. Administering a laxative (Choice A) is unnecessary and not indicated after CT with contrast. Maintaining the client on strict bed rest (Choice C) is not necessary unless specified by the healthcare provider. Holding all medications for at least 2 hours (Choice D) is not a standard practice after CT with contrast.
5. 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.
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