ATI RN
ATI Pharmacology Proctored Exam 2024
1. A client has Diabetes Mellitus, Pulmonary Tuberculosis, and a new prescription for Isoniazid. Which of the following supplements should the nurse expect to administer to prevent an adverse effect of INH?
- A. Ascorbic acid
- B. Pyridoxine
- C. Folic acid
- D. Cyanocobalamin
Correct answer: B
Rationale: Pyridoxine is administered with Isoniazid to prevent peripheral neuropathy, a common adverse effect of the drug. It is essential to provide this supplement to the client to minimize the risk of developing this adverse effect. Ascorbic acid (Vitamin C) is not typically given to prevent INH adverse effects. Folic acid and Cyanocobalamin are not commonly administered with INH for this purpose.
2. A preschooler weighing 44 lb is to receive Amoxicillin 20 mg/kg/day PO divided equally every 12 hr. The available amoxicillin suspension is 250 mg/5 mL. How many mL should the nurse administer per dose?
- A. 4 mL
- B. 5 mL
- C. 6 mL
- D. 3 mL
Correct answer: A
Rationale: To calculate the dosage per administration: First, convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, calculate the required dosage per dose: (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. To determine the mL per dose, divide the required dosage by the concentration of the amoxicillin suspension: (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the correct answer is 4 mL. Choice B (5 mL) is incorrect because the correct calculation yields 4 mL. Choices C (6 mL) and D (3 mL) are also incorrect as they do not align with the accurate calculation based on the provided information.
3. 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.
4. A healthcare professional is preparing to administer Haloperidol 2 mg PO every 12 hr. The available medication is haloperidol 1 mg/tablet. How many tablets should the healthcare professional administer?
- A. 1 tablet
- B. 2 tablets
- C. 3 tablets
- D. 4 tablets
Correct answer: B
Rationale: To calculate the number of tablets needed, divide the desired dose by the dose per tablet. In this case, (2 mg / 1 mg/tablet) = 2 tablets required to administer the correct dosage of Haloperidol.
5. A healthcare provider is assessing a client who is taking Digoxin to treat heart failure. Which of the following findings is a manifestation of digoxin toxicity?
- A. Bruising
- B. Report of metallic taste
- C. Muscle pain
- D. Report of anorexia
Correct answer: D
Rationale: The correct manifestation of digoxin toxicity is the report of anorexia. Anorexia, blurred vision, stomach pain, and diarrhea are common signs of digoxin toxicity. Bruising, metallic taste, and muscle pain are not typically associated with digoxin toxicity. Patients should promptly report symptoms of toxicity to their healthcare provider for further evaluation and management.
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