ATI RN
ATI Pharmacology
1. A client with heart failure is being instructed on laxative use. Which of the following laxatives should the client avoid?
- A. Sodium phosphate
- B. Psyllium
- C. Bisacodyl
- D. Polyethylene glycol
Correct answer: A
Rationale: The correct answer is A: Sodium phosphate. Clients with heart failure often follow a sodium-restricted diet. Sodium phosphate laxatives can lead to sodium absorption, causing fluid retention, which is contraindicated in heart failure. It is crucial to avoid sodium phosphate laxatives in these clients to prevent exacerbation of fluid overload and heart failure symptoms. Psyllium (choice B), Bisacodyl (choice C), and Polyethylene glycol (choice D) are not contraindicated in clients with heart failure and can be used safely for bowel management.
2. A client has a new prescription for Ondansetron. Which of the following statements should the nurse include?
- A. Take the medication 30 minutes before chemotherapy.
- B. Expect your urine to turn orange.
- C. Increase your intake of high-fiber foods.
- D. Avoid drinking grapefruit juice.
Correct answer: A
Rationale: The correct answer is A: 'Take the medication 30 minutes before chemotherapy.' Ondansetron, an antiemetic, should be taken before chemotherapy to prevent nausea and vomiting. Taking it 30 minutes before chemotherapy ensures the medication is most effective in controlling chemotherapy-induced nausea and vomiting. Choices B, C, and D are incorrect. Option B is unrelated to Ondansetron, option C is not necessary for this medication, and option D does not interact with Ondansetron but is relevant for other medications.
3. Which of the following drugs is associated with the reaction of Cinchonism?
- A. Valproic acid
- B. Quinidine
- C. Isoniazid
- D. Ethosuximide
Correct answer: B
Rationale: Cinchonism is associated with Quinidine, not Valproic acid, Isoniazid, or Ethosuximide. Cinchonism is characterized by symptoms such as tinnitus, dizziness, and headaches. Quinidine, being an antiarrhythmic agent, can lead to this condition as a side effect.
4. When should a blood sample be obtained for a peak serum level of gentamicin when administered by IV infusion for 1 hour at 0900?
- A. 1000
- B. 1030
- C. 1100
- D. 1130
Correct answer: B
Rationale: The nurse should obtain the blood sample for the peak serum level at 1030. This timing allows for 30 minutes to elapse after the completion of the 1-hour IV infusion, which is the recommended window for obtaining the peak serum level of gentamicin.
5. A client has a new prescription for hydrochlorothiazide to treat hypertension. Which of the following instructions should be included?
- A. Take the medication in the morning.
- B. Increase intake of potassium-rich foods.
- C. Avoid sun exposure while taking this medication.
- D. Limit fluid intake to 1 liter per day.
Correct answer: B
Rationale: The correct instruction that should be included for a client prescribed hydrochlorothiazide is to increase the intake of potassium-rich foods. Hydrochlorothiazide, being a diuretic, can lead to hypokalemia by enhancing potassium excretion. Increasing consumption of potassium-rich foods like bananas or oranges can help prevent hypokalemia and maintain electrolyte balance. Choices A, C, and D are incorrect. Taking the medication in the morning is not a specific instruction related to hydrochlorothiazide. Avoiding sun exposure is more relevant for photosensitive medications, not hydrochlorothiazide. Limiting fluid intake to 1 liter per day is not necessary unless specifically advised by a healthcare provider.
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