HESI RN
Pharmacology HESI
1. A client is being monitored while receiving bethanechol chloride (Urecholine) for urinary retention. Which of the following indicates a therapeutic effect of this medication?
- A. Increased heart rate
- B. Increased peristalsis
- C. Passage of flatus
- D. Urinary output of 50 mL per hour
Correct answer: D
Rationale: Bethanechol chloride (Urecholine) is administered to stimulate the bladder and treat urinary retention. The therapeutic effect is indicated by an increased urinary output, as it demonstrates the medication's ability to prompt the bladder to empty. Increased heart rate and passage of flatus are unrelated to the therapeutic effects of bethanechol. Although bethanechol can increase peristalsis, the primary therapeutic goal is to address urinary retention.
2. A client is taking cetirizine hydrochloride (Zyrtec). The nurse checks for which of the following side effects of this medication?
- A. Diarrhea
- B. Excitability
- C. Drowsiness
- D. Excess salivation
Correct answer: C
Rationale: Cetirizine hydrochloride (Zyrtec) is known to commonly cause drowsiness or sedation as a side effect. Therefore, the nurse should monitor the client for signs of drowsiness when administering this medication. Choice A, Diarrhea, is not a common side effect of cetirizine. Choice B, Excitability, is not a typical side effect of this antihistamine; instead, it tends to cause drowsiness. Choice D, Excess salivation, is not associated with cetirizine use.
3. A client is being taught about the use of enoxaparin (Lovenox) for the prevention of deep vein thrombosis. Which instruction should the nurse include in the teaching plan?
- A. Inject the medication subcutaneously.
- B. Avoid massaging the injection site after administration.
- C. Administer the medication at the same time each day.
- D. Do not expel the air bubble from the syringe before injection.
Correct answer: C
Rationale: Enoxaparin (Lovenox) is administered subcutaneously at the same time each day to maintain consistent blood levels. Injecting the medication into the muscle is incorrect, as it should be given subcutaneously. Massaging the injection site should be avoided to prevent bruising. The air bubble in the prefilled syringe should not be expelled, as it ensures the full dose is administered.
4. A health care provider (HCP) writes a prescription for digoxin (Lanoxin), 0.25 mg daily. The nurse teaches the client about the medication and tells the client that it is important to:
- A. Count the radial and carotid pulses every morning.
- B. Check the blood pressure every morning and evening.
- C. Stop taking the medication if the pulse is higher than 100 beats per minute.
- D. Withhold the medication and call the HCP if the pulse is less than 60 beats per minute.
Correct answer: D
Rationale: When taking digoxin, monitoring the pulse rate is essential due to its potential effects on heart rate. Digoxin can lead to bradycardia, where the pulse rate drops significantly. Withholding the medication and promptly contacting the healthcare provider if the pulse falls below 60 beats per minute is crucial to prevent severe complications and ensure appropriate management. Choices A, B, and C are incorrect because counting radial and carotid pulses, checking blood pressure, or stopping the medication based on a pulse rate higher than 100 beats per minute are not the primary monitoring parameters for a client taking digoxin.
5. Insulin glargine (Lantus) is prescribed for a client with diabetes mellitus. The nurse tells the client that it is best to take the insulin:
- A. 1 hour after each meal
- B. Once daily, at the same time each day
- C. 15 minutes before breakfast, lunch, and dinner
- D. Before each meal, based on the blood glucose level
Correct answer: B
Rationale: Insulin glargine (Lantus) is a long-acting insulin with a duration of action of approximately 24 hours, making it suitable for once-daily dosing at the same time each day. This regimen helps maintain consistent blood glucose levels and simplifies the client's treatment routine. Taking insulin glargine once daily provides basal insulin coverage throughout the day, reducing the risk of hypoglycemia compared to short-acting insulins that are taken before each meal.
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