HESI RN
HESI Pharmacology Practice Exam
1. The camp nurse asks the children preparing to swim in the lake if they have applied sunscreen. The nurse reminds the children that chemical sunscreens are most effective when applied:
- A. Immediately before swimming
- B. 15 minutes before exposure to the sun
- C. Immediately before exposure to the sun
- D. At least 30 minutes before exposure to the sun
Correct answer: D
Rationale: Chemical sunscreens are most effective when applied at least 30 minutes before exposure to the sun to allow them to penetrate the skin and provide optimal protection. Applying sunscreen immediately before swimming (Choice A) or immediately before exposure to the sun (Choice C) may not provide sufficient time for the sunscreen to be absorbed and offer proper protection. Applying sunscreen 15 minutes before sun exposure (Choice B) is also not ideal as it may not allow enough time for the sunscreen to work effectively. Therefore, the correct answer is to apply chemical sunscreen at least 30 minutes before exposure to the sun to ensure it can be absorbed and offer the intended protection. It is important to reapply sunscreen after swimming or sweating to maintain its effectiveness.
2. A client is receiving desmopressin acetate (DDAVP), and a healthcare provider is monitoring for adverse effects. Which of the following indicates the presence of an adverse effect?
- A. Insomnia
- B. Drowsiness
- C. Weight loss
- D. Increased urination
Correct answer: B
Rationale: Drowsiness can be a sign of water intoxication or hyponatremia, which are potential adverse effects of desmopressin acetate (DDAVP). It is crucial to monitor for this symptom and promptly address it to prevent complications.
3. A client is taking ticlopidine hydrochloride (Ticlid). The nurse tells the client to avoid which of the following while taking this medication?
- A. Vitamin C
- B. Vitamin D
- C. Acetaminophen (Tylenol)
- D. Acetylsalicylic acid (aspirin)
Correct answer: D
Rationale: Ticlopidine hydrochloride is a platelet aggregation inhibitor. Aspirin or any aspirin-containing product should be avoided as they can precipitate or aggravate bleeding by affecting platelet function and increasing the risk of bleeding complications.
4. When administering hydrochlorothiazide (HydroDIURIL) to a client, the nurse should be aware of which of the following concerns?
- A. Hypouricemia, hyperkalemia
- B. Increased risk of osteoporosis
- C. Hypokalemia, hyperglycemia, sulfa allergy
- D. Hyperkalemia, hypoglycemia, penicillin allergy
Correct answer: C
Rationale: The correct answer is C. Hydrochlorothiazide is a thiazide diuretic, which can lead to hypokalemia and hyperglycemia. It is also associated with hypercalcemia, hyperlipidemia, and hyperuricemia. Being a sulfa-based medication, individuals with a sulfa allergy are at risk for an allergic reaction when taking hydrochlorothiazide. Choice A is incorrect because hydrochlorothiazide can cause hyperkalemia rather than hypouricemia. Choice B is incorrect as there is no direct link between hydrochlorothiazide and an increased risk of osteoporosis. Choice D is incorrect because hypoglycemia and penicillin allergy are not typically associated with hydrochlorothiazide use.
5. A client has just taken a dose of trimethobenzamide (Tigan). The nurse plans to monitor this client for relief of:
- A. Heartburn
- B. Constipation
- C. Abdominal pain
- D. Nausea and vomiting
Correct answer: D
Rationale: The correct answer is D: Nausea and vomiting. Trimethobenzamide (Tigan) is an antiemetic medication used to treat nausea and vomiting. Therefore, the nurse would monitor the client for relief of nausea and vomiting after taking this medication.
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