ATI RN
ATI Pharmacology Quizlet
1. A client is prescribed Lithium. Which of the following laboratory values should be monitored to assess for potential toxicity?
- A. Serum sodium
- B. Serum lithium
- C. Serum potassium
- D. Serum calcium
Correct answer: B
Rationale: When a client is prescribed Lithium, monitoring serum lithium levels is crucial to ensure they remain within the therapeutic range and to assess for potential toxicity. Monitoring serum lithium levels helps prevent adverse effects associated with lithium toxicity, such as nausea, vomiting, diarrhea, tremors, and confusion.
2. A client has a new prescription for Clonidine. Which of the following adverse effects should the nurse monitor?
- A. Drowsiness
- B. Dry mouth
- C. Weight gain
- D. Insomnia
Correct answer: B
Rationale: Dry mouth is a common adverse effect of Clonidine. Clonidine can reduce saliva production, leading to dry mouth. To alleviate this symptom, the client should be advised to increase fluid intake or use sugar-free gum or candy. Monitoring for dry mouth is important to prevent complications such as oral health issues. Drowsiness, weight gain, and insomnia are potential side effects of Clonidine but are less common compared to dry mouth. Therefore, the nurse should prioritize monitoring for dry mouth as it's a more prevalent adverse effect associated with this medication.
3. A client has a new prescription for spironolactone. The client should be monitored for which of the following adverse effects?
- A. Hyperkalemia
- B. Hyponatremia
- C. Hypokalemia
- D. Hypercalcemia
Correct answer: A
Rationale: Corrected Rationale: Spironolactone is a potassium-sparing diuretic that can lead to hyperkalemia as an adverse effect. Hyperkalemia is characterized by elevated levels of potassium in the blood, which can be dangerous and lead to cardiac arrhythmias. Therefore, monitoring for signs and symptoms of hyperkalemia is crucial when a client is taking spironolactone. Choices B, C, and D are incorrect because spironolactone is not known to cause hyponatremia, hypokalemia, or hypercalcemia as adverse effects.
4. A nurse reviewing a client's medical record notes a new prescription for verifying the trough level of the client's medication. Which of the following actions should the nurse take?
- A. Obtain a blood specimen immediately prior to administering the next dose of medication.
- B. Verify that the client has been taking the medication for 24 hours before obtaining a blood specimen.
- C. Ask the client to provide a urine specimen after the next dose of medication.
- D. Administer the medication and obtain a blood specimen 30 minutes later.
Correct answer: A
Rationale: To verify the trough levels of a medication accurately, the nurse should obtain a blood specimen immediately before administering the next dose of the medication. The trough level represents the lowest concentration of the medication in the bloodstream, typically right before the next dose is due. This timing ensures an accurate assessment of the drug's concentration in the body at its lowest point, aiding in determining the drug's effectiveness and potential toxicity levels. Choice B is incorrect because waiting for 24 hours would not provide the trough level. Choice C is incorrect as urine specimens are not used to measure trough levels. Choice D is incorrect as obtaining a blood specimen 30 minutes after administering the medication would not reflect the trough level.
5. A client has a new prescription for Lithium Carbonate. When teaching the client about ways to prevent Lithium toxicity, what advice should the nurse provide?
- A. Avoid using acetaminophen for headaches.
- B. Restrict intake of foods high in sodium.
- C. Decrease fluid intake to less than 1,500 mL daily.
- D. Limit aerobic activity in hot weather.
Correct answer: D
Rationale: The nurse should advise the client to limit aerobic activity in hot weather to prevent sodium/water depletion, which can increase the risk for Lithium toxicity. Excessive sweating and fluid loss can lead to dehydration and changes in lithium levels, potentially resulting in toxicity. Choices A, B, and C are incorrect. Avoiding acetaminophen for headaches is not directly related to Lithium toxicity. Restricting sodium intake and decreasing fluid intake can lead to increased lithium levels and toxicity, so these are not recommended actions.
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