HESI RN
HESI Pharmacology Practice Exam
1. When reviewing laboratory results for a client receiving tacrolimus (Prograf), which laboratory result would indicate to the nurse that the client is experiencing an adverse effect of the medication?
- A. Blood glucose of 200 mg/dL
- B. Potassium level of 3.8 mEq/L
- C. Platelet count of 300,000 cells/mm³
- D. White blood cell count of 6000 cells/mm³
Correct answer: A
Rationale: An elevated blood glucose level of 200 mg/dL indicates an adverse effect of tacrolimus. This finding suggests hyperglycemia, which is a known adverse effect of the medication. Other potential adverse effects of tacrolimus include neurotoxicity and hypertension. Monitoring blood glucose levels is crucial to detect and manage this adverse effect promptly. Choices B, C, and D are not directly associated with adverse effects of tacrolimus. Potassium, platelet count, and white blood cell count are important parameters to monitor for other reasons but not specifically for detecting adverse effects of tacrolimus.
2. While assisting in caring for a pregnant client receiving intravenous magnesium sulfate for preeclampsia management, a nurse notes the client's absent deep tendon reflexes. What determination should the nurse make based on this data?
- A. The magnesium sulfate is effective.
- B. The infusion rate needs to be increased.
- C. The client is experiencing cerebral edema.
- D. The client is experiencing magnesium toxicity.
Correct answer: D
Rationale: When a pregnant client receiving intravenous magnesium sulfate for preeclampsia management exhibits absent deep tendon reflexes, this indicates magnesium toxicity. Magnesium toxicity can occur as a complication of magnesium sulfate therapy, leading to suppressed reflexes. It is crucial for the nurse to recognize this sign promptly and report it to prevent further complications or harm to the client.
3. The client has a PRN prescription for loperamide hydrochloride (Imodium). The nurse understands that this medication is used for which condition?
- A. Constipation
- B. Abdominal pain
- C. An episode of diarrhea
- D. Hematest-positive nasogastric tube drainage
Correct answer: C
Rationale: Loperamide hydrochloride (Imodium) is an antidiarrheal medication commonly used to manage episodes of diarrhea. It works by slowing down gut movement and reducing the frequency of bowel movements. Loperamide is not indicated for constipation, abdominal pain, or hematest-positive nasogastric tube drainage. It is specifically useful in acute and chronic diarrhea, such as in cases of inflammatory bowel disease, to help control symptoms and decrease fluid loss.
4. A client with portosystemic encephalopathy is receiving oral lactulose (Chronulac) daily. The nurse assesses which of the following to determine medication effectiveness?
- A. Lung sounds
- B. Blood pressure
- C. Blood ammonia level
- D. Serum potassium level
Correct answer: C
Rationale: In portosystemic encephalopathy, the liver's ability to detoxify ammonia is impaired, leading to elevated blood ammonia levels, which can cause neurological symptoms such as encephalopathy. Lactulose is given to reduce ammonia levels by promoting its excretion through the bowel. Therefore, assessing the blood ammonia level is crucial to determine the effectiveness of lactulose therapy in managing portosystemic encephalopathy.
5. When a client taking warfarin sodium (Coumadin) is prescribed ciprofloxacin (Cipro), the nurse should closely monitor the client for which potential effect of this drug interaction?
- A. Increased risk of bleeding
- B. Decreased warfarin effectiveness
- C. Increased risk of thrombosis
- D. Decreased ciprofloxacin effectiveness
Correct answer: A
Rationale: When ciprofloxacin (Cipro) is given with warfarin sodium (Coumadin), it can potentiate the effects of warfarin, leading to an increased risk of bleeding. Therefore, the nurse should closely monitor the client's INR levels and watch for signs of bleeding such as bruising, petechiae, or black tarry stools.
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