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. Isotretinoin is prescribed for a client with severe acne. Before the administration of this medication, the nurse anticipates that which laboratory test will be prescribed?
- A. Platelet count
- B. Triglyceride level
- C. Complete blood count
- D. White blood cell count
Correct answer: B
Rationale: Before administering Isotretinoin, it is important to check the client's triglyceride levels. Isotretinoin is known to elevate triglyceride levels, hence monitoring them before and periodically during treatment is essential to prevent potential adverse effects.
3. The healthcare provider is reviewing the history and physical examination of a client who will be receiving asparaginase (Elspar), an antineoplastic agent. The healthcare provider consults with the registered nurse regarding the administration of the medication if which of the following is documented in the client's history?
- A. Pancreatitis
- B. Diabetes mellitus
- C. Myocardial infarction
- D. Chronic obstructive pulmonary disease
Correct answer: A
Rationale: Asparaginase is contraindicated in clients with a history of pancreatitis due to the risk of impairing pancreatic function and causing complications. Therefore, the healthcare provider should consult with the registered nurse to assess the client's history of pancreatitis before administering asparaginase.
4. Prednisone is prescribed for a client with diabetes mellitus who is taking Humulin neutral protamine Hagedorn (NPH) insulin daily. Which of the following prescription changes does the nurse anticipate during therapy with prednisone?
- A. An additional dose of prednisone daily
- B. A decreased amount of daily Humulin NPH insulin
- C. An increased amount of daily Humulin NPH insulin
- D. The addition of an oral hypoglycemic medication daily
Correct answer: C
Rationale: When prednisone is prescribed for a client with diabetes mellitus who is taking Humulin NPH insulin daily, the nurse should anticipate an increased amount of daily Humulin NPH insulin. Prednisone, a glucocorticoid, can elevate blood glucose levels, requiring an increase in insulin dosage to maintain optimal blood sugar control.
5. A client is taking lansoprazole (Prevacid) for the chronic management of Zollinger-Ellison syndrome. The nurse advises the client to take which of the following products if needed for a headache?
- A. Naproxen (Aleve)
- B. Ibuprofen (Advil)
- C. Acetaminophen (Tylenol)
- D. Acetylsalicylic acid (aspirin)
Correct answer: C
Rationale: Acetaminophen is the preferred choice for pain relief in individuals taking lansoprazole for Zollinger-Ellison syndrome due to its lower risk of stomach irritation compared to NSAIDs like ibuprofen and aspirin. Naproxen, ibuprofen, and aspirin are NSAIDs that can increase the risk of stomach irritation and bleeding, which is why they are not recommended for individuals with Zollinger-Ellison syndrome who are already on lansoprazole to reduce stomach acid production.
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