ATI LPN
ATI LPN Pharmacology 2023 retake 1 Questions
Extract:
Question 1 of 5
A nurse is preparing to administer phenobarbital 3 mg/kg/day PO in two divided doses to a client who weighs 145 lb. The amount available is phenobarbital 100 mg/tablet. How many tablets should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 1
Rationale:
To determine the total daily dose, convert the client's weight from lb to kg (145 lb / 2.2 = 65.91 kg).
Then calculate the total daily dose in mg (3 mg/kg/day * 65.91 kg = 197.73 mg/day). Since it is divided into two doses, the nurse should administer approximately 99 mg per dose. Since each tablet is 100 mg, the nurse should administer 1 tablet per dose. This is the correct answer, as it ensures the client receives the prescribed dose. Other choices are incorrect as they do not align with the calculated dose needed, leading to potential under or overdosing.
Question 2 of 5
A nurse is caring for a client who has Graves' disease and is to start therapy with propylthiouracil. The nurse should expect which of the following outcomes?
Correct Answer: C
Rationale: The correct answer is C: Decreased heart rate. Propylthiouracil is an antithyroid medication used to treat hyperthyroidism, such as Graves' disease. It works by inhibiting the production of thyroid hormones. A decreased heart rate is an expected outcome as hyperthyroidism can cause tachycardia (increased heart rate), and treatment with propylthiouracil helps normalize heart rate.
Incorrect options:
A: Increased Hct - Propylthiouracil does not affect hematocrit levels.
B: Decreased WBC count - Propylthiouracil does not typically affect white blood cell count.
D: Increased blood pressure - Propylthiouracil does not lead to an increase in blood pressure.
Question 3 of 5
A nurse is caring for a client who is taking alendronate to treat osteoporosis. The nurse should monitor for which of the following adverse effects?
Correct Answer: C
Rationale: The correct answer is C: Musculoskeletal pain. Alendronate is a bisphosphonate used to treat osteoporosis. It can cause musculoskeletal pain as a common adverse effect due to its impact on bone turnover. Monitoring for this adverse effect is essential to ensure patient safety. Drowsiness (
A), dyskinesia (
B), and weight gain (
D) are not typically associated with alendronate use, making them incorrect choices. It is important to focus on the specific pharmacological effects and common adverse reactions of medications to determine the correct answer.
Question 4 of 5
A nurse is reinforcing teaching with a client who has schizophrenia and a new prescription for haloperidol. The nurse should instruct the client to avoid taking which of the following medications?
Correct Answer: A
Rationale: The correct answer is A: Diphenhydramine. Haloperidol and diphenhydramine both have sedative effects and can cause additive central nervous system depression when taken together. This can lead to increased drowsiness, confusion, and impaired coordination. Docusate sodium (
B), ibuprofen (
C), and glucosamine (
D) do not have significant interactions with haloperidol. It is important for the client to avoid diphenhydramine to prevent potential adverse effects.
Question 5 of 5
A nurse is administering phenytoin to a client. The nurse should monitor for which of the following adverse effects?
Correct Answer: B
Rationale: The correct answer is B: Bleeding gums. Phenytoin is an antiepileptic medication known to cause gingival hyperplasia, leading to bleeding gums. Monitoring for this adverse effect is crucial to prevent further complications. Tinnitus (
A) is associated with aspirin overdose. Jaundice (
C) is a potential adverse effect of liver-damaging medications. Deep vein thrombosis (
D) is not directly related to phenytoin administration.