HESI RN
HESI Pharmacology Practice Exam
1. A postoperative client has received a dose of naloxone hydrochloride for respiratory depression shortly after transfer to the nursing unit from the postanesthesia care unit. After administration of the medication, the nurse checks the client for:
- A. Pupillary changes
- B. Scattered lung wheezes
- C. Sudden increase in pain
- D. Sudden episodes of diarrhea
Correct answer: C
Rationale: Naloxone hydrochloride is an antidote to opioids and may be administered to postoperative clients to address respiratory depression. This medication can also reverse the effects of analgesics, potentially leading to a sudden increase in pain. Therefore, the nurse must assess the client for any unexpected rise in pain levels after naloxone administration. Choices A, B, and D are incorrect because pupillary changes, scattered lung wheezes, and sudden episodes of diarrhea are not typically associated with naloxone administration for respiratory depression.
2. A client is receiving dietary instructions from a nurse regarding warfarin sodium (Coumadin) therapy. The nurse advises the client to avoid which food item?
- A. Grapes
- B. Spinach
- C. Watermelon
- D. Cottage cheese
Correct answer: B
Rationale: The correct answer is B: Spinach. Spinach is high in vitamin K, which antagonizes the effects of warfarin sodium, an anticoagulant medication. Clients taking warfarin should avoid consuming foods rich in vitamin K, like spinach, to maintain the medication's effectiveness. Grapes (choice A), watermelon (choice C), and cottage cheese (choice D) do not interfere with the effects of warfarin, so they are safe for the client to consume while on warfarin therapy.
3. A client who is taking hydrochlorothiazide (HydroDIURIL, HCTZ) has been started on triamterene (Dyrenium) as well. The client asks the nurse why both medications are required. The nurse formulates a response, based on the understanding that:
- A. Both are weak potassium-losing diuretics.
- B. The combination of these medications prevents renal toxicity.
- C. Hydrochlorothiazide is less expensive, so using a combination of diuretics is cost-effective.
- D. Triamterene is a potassium-sparing diuretic, whereas hydrochlorothiazide is a potassium-losing diuretic.
Correct answer: D
Rationale: The combination of triamterene and hydrochlorothiazide is used because triamterene is a potassium-sparing diuretic, which helps retain potassium, while hydrochlorothiazide is a potassium-losing diuretic, which promotes potassium excretion. This combination helps balance potassium levels in the body, preventing imbalances that can occur when using potassium-losing diuretics alone.
4. A client with diabetes mellitus is prescribed prednisone for an acute exacerbation of asthma. Which of the following should the nurse include in the client's teaching plan?
- A. Increase the dose of insulin while taking prednisone.
- B. Take the prednisone with food.
- C. Monitor blood glucose levels closely.
- D. Do not discontinue prednisone abruptly.
Correct answer: C
Rationale: The correct answer is to monitor blood glucose levels closely. Prednisone can elevate blood glucose levels, necessitating close monitoring. Adjusting the insulin dose may be necessary, but this should be managed by a healthcare provider. Prednisone should be taken with food to reduce gastrointestinal discomfort and should not be stopped suddenly to prevent adverse effects.
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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