ATI RN
ATI Pharmacology Proctored Exam
1. A child is prescribed Amoxicillin 20 mg/kg/day PO to be administered every 12 hr. The child weighs 44 lb. The available medication is amoxicillin suspension 250 mg/5 mL. How many mL should be given per dose?
- A. 4 mL
- B. 5 mL
- C. 6 mL
- D. 3 mL
Correct answer: A
Rationale: To calculate the dosage per administration: Convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the nurse should administer 4 mL of amoxicillin suspension per dose. Choice B, 5 mL, is incorrect because the calculation shows that 4 mL is the correct dose. Choices C and D are also incorrect as they are not in line with the calculated dosage based on the weight of the child and the concentration of the medication.
2. Which of the following types of insulin is classified as 'long-acting'?
- A. Lispro (Humalog)
- B. NPH (Humulin N)
- C. Regular insulin (Humulin R)
- D. Glargine (Lantus)
Correct answer: D
Rationale: The correct answer is Glargine (Lantus). Glargine is classified as a long-acting insulin due to its slow, steady release over an extended period, making it suitable for basal insulin requirements. It has a duration of action that can last up to 24 hours, helping to maintain stable blood sugar levels throughout the day. Lispro (Humalog) is a rapid-acting insulin, NPH (Humulin N) is an intermediate-acting insulin, and Regular insulin (Humulin R) is a short-acting insulin, so they are not classified as long-acting insulins.
3. While caring for a client receiving IV heparin, which of the following findings should the nurse identify as an adverse effect of this medication?
- A. Hypertension
- B. Hyperglycemia
- C. Thrombocytopenia
- D. Leukopenia
Correct answer: C
Rationale: Thrombocytopenia, a decrease in platelet count, is a known adverse effect associated with heparin therapy. It can lead to an increased risk of bleeding and should be closely monitored during treatment. Choices A, B, and D are incorrect. Hypertension is not typically associated with heparin use; hyperglycemia is not a common adverse effect of heparin; leukopenia is not a primary side effect of heparin therapy.
4. A nurse on a medical-surgical unit administers a hypnotic medication to an older adult client at 2100. The next morning, the client is drowsy and wants to sleep instead of eating breakfast. Which of the following factors should the nurse identify as a possible reason for the client's drowsiness?
- A. Reduced cardiac function
- B. First-pass effect
- C. Reduced hepatic function
- D. Increased gastric motility
Correct answer: C
Rationale: In older adults, reduced hepatic function can lead to prolonged effects of medications metabolized by the liver. This situation can result in increased drug levels in the body, causing drowsiness and other side effects. Adjusting the dosage of the hypnotic medication may be necessary to prevent such adverse effects in older adult clients. Choice A, reduced cardiac function, is not directly related to the metabolism of the medication and is unlikely to cause drowsiness. Choice B, first-pass effect, refers to the initial metabolism of a drug in the liver before it enters circulation, but it is not the cause of drowsiness in this scenario. Choice D, increased gastric motility, does not play a significant role in the metabolism of the medication and is not a likely cause of the client's drowsiness.
5. A client has a new prescription for Beclomethasone. Which of the following instructions should the nurse include?
- A. Rinse your mouth after each use of this medication.
- B. Limit fluid intake while taking this medication.
- C. Increase your intake of vitamin B12 while taking this medication.
- D. You can take the medication as needed.
Correct answer: A
Rationale: The correct instruction for a client prescribed Beclomethasone is to rinse the mouth after each use to reduce the risk of oral fungal infection. Beclomethasone is a corticosteroid inhaler that can increase the risk of oral thrush, so rinsing the mouth helps minimize this side effect. Choice B is incorrect because there is no need to limit fluid intake while taking Beclomethasone. Choice C is incorrect as there is no specific need to increase vitamin B12 intake with this medication. Choice D is incorrect because Beclomethasone should be taken as prescribed, not as needed.
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