ATI RN
ATI Pharmacology Quizlet
1. A client has a new prescription for Lovastatin. Which of the following instructions should be included?
- A. Take this medication on an empty stomach.
- B. Take this medication in the morning.
- C. Take this medication at bedtime.
- D. Increase your intake of potassium-rich foods.
Correct answer: C
Rationale: Lovastatin should be taken at bedtime because cholesterol production in the liver is highest at night, making the medication more effective in reducing cholesterol levels. By taking it at bedtime, the medication aligns with the body's natural rhythm of cholesterol synthesis, optimizing its therapeutic effects.
2. A client has a new prescription for clonidine to treat hypertension. Which of the following instructions should the nurse include?
- A. Discontinue the medication if a rash develops.
- B. Expect increased salivation during the first few weeks of therapy.
- C. Avoid driving until the client's reaction to the medication is known.
- D. Stop the medication if you experience a dry mouth.
Correct answer: C
Rationale: The correct instruction for a client starting clonidine therapy for hypertension is to avoid driving until their reaction to the medication is known. Clonidine can cause drowsiness, so engaging in activities like driving that require alertness should be avoided until the individual understands how the medication affects them. Choices A, B, and D are incorrect because they do not address the specific side effect of drowsiness associated with clonidine that could impair driving abilities. Discontinuing the medication if a rash develops, expecting increased salivation, or stopping the medication for dry mouth are not primary concerns related to clonidine therapy for hypertension.
3. When reviewing a client's health record, a healthcare professional notes that the client is experiencing episodes of hypokalemia. Which of the following medications should be identified as a cause of the client's hypokalemia?
- A. Captopril
- B. Lisinopril
- C. Furosemide
- D. Spironolactone
Correct answer: C
Rationale: Furosemide, a loop diuretic, can lead to hypokalemia by increasing the excretion of potassium in the urine. This potassium loss can result in lower-than-normal levels of potassium in the body, leading to hypokalemia.
4. A client has a prescription for Acyclovir. Which of the following instructions should the nurse include?
- A. Expect to take this medication long-term.
- B. Increase fluid intake during therapy.
- C. Avoid sexual contact while on this medication.
- D. Consult your healthcare provider if you experience nausea.
Correct answer: B
Rationale: The correct instruction for a client taking Acyclovir is to increase fluid intake during therapy. Acyclovir can cause nephrotoxicity, potentially leading to kidney damage. Increasing fluid intake helps prevent this adverse effect by promoting adequate renal function and drug elimination. Choices A, C, and D are incorrect. Acyclovir is usually prescribed for short-term use, there is no need to avoid sexual contact while on the medication, and nausea is not a common side effect that necessitates immediate consultation with a healthcare provider.
5. A client is prescribed gentamicin for an infection. Which finding indicates a potential adverse reaction to the medication?
- A. Blood pressure 160/90 mm Hg
- B. Presence of red blood cells in the urine
- C. Urine output of 35 mL/hr
- D. Respiratory rate of 22/min
Correct answer: B
Rationale: The presence of red blood cells in the urine is a significant finding that can indicate nephrotoxicity, a potential adverse effect of gentamicin. Nephrotoxicity can lead to kidney damage, and monitoring for this adverse reaction is crucial during gentamicin therapy. Elevated blood pressure (Choice A) is not typically associated with gentamicin adverse reactions. Decreased urine output (Choice C) may suggest kidney impairment but is not as specific as the presence of red blood cells in the urine. Respiratory rate (Choice D) is not directly related to potential adverse reactions to gentamicin.
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