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. Which of the following herbal therapies would be prescribed for its use as an antispasmodic? Select all that apply.
- A. Aloe
- B. Kava
- C. Ginger
- D. Chamomile
Correct answer: D
Rationale: Chamomile is known for its antispasmodic properties. It helps in relaxing muscles and reducing spasms. Aloe is a laxative, kava has anxiolytic and sedative effects, and ginger is commonly used to relieve nausea.
3. Mycophenolate mofetil (CellCept) is prescribed for a client as prophylaxis for organ rejection following an allogeneic renal transplant. Which of the following instructions does the nurse reinforce regarding administration of this medication?
- A. Administer on an empty stomach.
- B. Take the medication with a calcium-type antacid.
- C. Open the capsule and mix with food for administration.
- D. Contact the health care provider (HCP) if a sore throat occurs.
Correct answer: D
Rationale: The correct instruction for administering mycophenolate mofetil (CellCept) is to contact the healthcare provider (HCP) if unusual bleeding or bruising, sore throat, or other adverse effects occur. It is essential not to open or crush the capsules to maintain the medication's efficacy.
4. After administering acetylcysteine (Mucomyst), 20% solution diluted in 0.9% normal saline by nebulizer, the nurse should have which item available for potential use?
- A. Ambu bag
- B. Intubation tray
- C. Nasogastric tube
- D. Suction equipment
Correct answer: D
Rationale: Acetylcysteine is administered via inhalation as a mucolytic. It helps liquefy secretions, making it easier for the client to clear them. However, in some cases, the increased volume of liquefied secretions may be challenging for the client to manage, leading to the potential need for suction equipment to assist in clearing the airway. Therefore, the nurse should have suction equipment available after administering acetylcysteine to address any issues related to excessive secretions.
5. A client is receiving intravenous heparin for a deep vein thrombosis. The healthcare provider should monitor the client for which of the following potential complications?
- A. Hypertension
- B. Tachycardia
- C. Bleeding
- D. Hyperkalemia
Correct answer: C
Rationale: Heparin is an anticoagulant, so the primary potential complication is bleeding. The healthcare provider should monitor the client for signs of bleeding, such as bruising, hematuria, and gastrointestinal bleeding. Hypertension, tachycardia, and hyperkalemia are not direct complications of heparin therapy. Therefore, the correct answer is bleeding, as it is the most significant risk associated with heparin administration.
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