ATI RN
ATI Pharmacology Quizlet
1. A client with increased liver enzymes is taking herbal supplements. Which of the following herbal supplements should the nurse report to the provider?
- A. Glucosamine
- B. Saw palmetto
- C. Kava
- D. St. John's wort
Correct answer: C
Rationale: The nurse should report kava to the provider because chronic use or high doses of kava can lead to liver damage, including severe liver failure. It is crucial for the nurse to be vigilant about any herbal supplement that could potentially worsen the client's liver condition.
2. A client has a prescription for Timolol eye drops for the treatment of glaucoma. Which of the following instructions should the nurse include?
- A. Apply gentle pressure to the nasolacrimal duct for 30 to 60 seconds after application.
- B. Avoid blinking immediately after instilling the drops.
- C. Keep your eyes closed for 5 minutes after application.
- D. Administer the drops directly onto the cornea.
Correct answer: A
Rationale: The correct instruction for the nurse to include is to apply gentle pressure to the nasolacrimal duct for 30 to 60 seconds after application. This technique helps prevent systemic absorption of the medication, reducing the risk of systemic side effects. By applying pressure, the drainage of the medication into the bloodstream through the nasolacrimal duct is minimized, enhancing the drug's local ocular effects. Choices B, C, and D are incorrect because blinking immediately after instilling the drops, keeping eyes closed for 5 minutes, and administering the drops directly onto the cornea are not recommended practices for administering Timolol eye drops.
3. While caring for a client receiving epoetin alfa to treat anemia, which finding should the nurse monitor for?
- A. Leukocytosis
- B. Hypertension
- C. Hyperkalemia
- D. Fever
Correct answer: B
Rationale: The nurse should monitor the client for hypertension when receiving epoetin alfa. Epoetin alfa stimulates red blood cell production, which can lead to increased blood pressure. Leukocytosis (increased white blood cells) and hyperkalemia (high potassium levels) are not typically associated with epoetin alfa therapy. Fever is also not a common adverse effect of this medication.
4. Potassium-sparing diuretics primarily affect which part of the kidney?
- A. Proximal convoluted tubule
- B. Loop of Henle
- C. Collecting duct
- D. Distal convoluted tubule
Correct answer: D
Rationale: Potassium-sparing diuretics exert their primary effects on the distal convoluted tubule in the kidney. By acting on this specific part of the nephron, these diuretics promote sodium excretion while sparing potassium, thus helping to maintain potassium levels in the body. This mechanism differs from other diuretics that may cause potassium loss as a side effect. Understanding the site of action of potassium-sparing diuretics is crucial in clinical practice for managing conditions like hypertension and edema where diuresis is necessary without the risk of hypokalemia.
5. A healthcare professional is caring for a client who has a new prescription for Lisinopril. Which of the following laboratory values should the professional monitor?
- A. Serum potassium
- B. Serum sodium
- C. Serum calcium
- D. Serum magnesium
Correct answer: A
Rationale: Lisinopril is an ACE inhibitor that can cause hyperkalemia by reducing the excretion of potassium in the kidneys. Monitoring serum potassium levels is essential to prevent complications such as cardiac arrhythmias. Therefore, the healthcare professional should closely monitor the client's serum potassium levels when they are on Lisinopril. Choices B, C, and D are incorrect because Lisinopril primarily affects potassium levels due to its mechanism of action as an ACE inhibitor. Serum sodium, calcium, and magnesium levels are not typically affected by Lisinopril in the same way as potassium.
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