HESI RN
HESI Medical Surgical Specialty Exam
1. A patient taking trimethoprim-sulfamethoxazole (TMP-SMX) to treat a urinary tract infection complains of a sore throat. The nurse will contact the provider to request an order for which laboratory test(s)?
- A. Complete blood count with differential
- B. Throat culture
- C. Urinalysis
- D. Coagulation studies
Correct answer: A
Rationale: When a patient taking trimethoprim-sulfamethoxazole (TMP-SMX) for a urinary tract infection presents with a sore throat, the nurse should request a complete blood count with differential. TMP-SMX can cause life-threatening adverse effects such as agranulocytosis, a condition characterized by a low white blood cell count, which can manifest as a sore throat. Ordering a complete blood count with differential helps assess the patient's white blood cell count to detect any potential serious adverse effects. Throat culture (Choice B) is not indicated unless there are specific signs of a throat infection. Urinalysis (Choice C) is not relevant for assessing a sore throat. Coagulation studies (Choice D) are not typically indicated for a sore throat symptom.
2. What is the primary action of insulin in the body?
- A. To lower blood pressure.
- B. To promote the absorption of glucose into cells.
- C. To increase blood glucose levels.
- D. To decrease blood glucose levels.
Correct answer: B
Rationale: The correct answer is B: To promote the absorption of glucose into cells. Insulin facilitates the uptake of glucose by cells, thereby decreasing blood glucose levels. Choice A is incorrect as insulin does not directly affect blood pressure. Choice C is inaccurate as insulin works to lower, not increase, blood glucose levels. Choice D is incorrect because insulin's primary role is to lower, not increase, blood glucose levels by promoting glucose uptake into cells.
3. A client has just undergone insertion of a chest tube that is attached to a closed chest drainage system. Which action should the nurse plan to take in the care of this client?
- A. Assessing the client’s chest for crepitus every 24 hours
- B. Taping the connections between the chest tube and the drainage system
- C. Adding 20 mL of sterile water to the suction control chamber every shift
- D. Recording the volume of secretions in the drainage collection chamber every 24 hours
Correct answer: B
Rationale: The correct action for the nurse to take in caring for a client with a chest tube connected to a closed chest drainage system is to tape the connections between the chest tube and the drainage system. This is done to prevent accidental disconnection, ensuring the system functions properly. Assessing the client’s chest for crepitus should be done more frequently than once every 24 hours to monitor for any air leaks. Adding sterile water to the suction control chamber is not necessary every shift; it should be done as needed to maintain the appropriate water level. Recording the volume of secretions in the drainage collection chamber should be done more frequently than every 24 hours, with hourly monitoring during the first 24 hours after insertion and every 8 hours thereafter to assess for changes or complications.
4. A client has a long history of hypertension. Which category of medication would the nurse expect to be ordered to avoid chronic kidney disease (CKD)?
- A. Antibiotic
- B. Histamine blocker
- C. Bronchodilator
- D. Angiotensin-converting enzyme (ACE) inhibitor
Correct answer: D
Rationale: The correct answer is D, Angiotensin-converting enzyme (ACE) inhibitor. ACE inhibitors inhibit the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor. By blocking this conversion, ACE inhibitors promote vasodilation and improve perfusion to the kidneys. Additionally, ACE inhibitors block the breakdown of bradykinin and prostaglandin, further contributing to vasodilation. They also lead to increased renin and decreased aldosterone levels. These effects help in reducing blood pressure and protecting the kidneys in clients with hypertension. Antibiotics are used to fight infections, histamine blockers reduce inflammation, and bronchodilators widen the bronchi, none of which address the underlying processes involved in slowing the progression of chronic kidney disease (CKD) in hypertensive clients.
5. In a client with heart failure presenting bilateral +4 edema of the right ankle extending up to midcalf while sitting with legs dependent, what is the priority goal?
- A. Decrease venous congestion.
- B. Maintain normal respirations.
- C. Maintain body temperature.
- D. Prevent injury to lower extremities.
Correct answer: A
Rationale: The priority goal in this scenario is to decrease venous congestion. By elevating the legs above the heart level, venous return is improved, reducing congestion in the lower extremities. This intervention helps decrease swelling and prevents complications such as impaired tissue perfusion. Maintaining normal respirations and body temperature are important aspects of care but are secondary to addressing the immediate issue of venous congestion. Preventing injury to lower extremities is also essential but takes precedence after managing the venous congestion to prevent further complications.
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