ATI RN
ATI Pharmacology Final Exam I Questions
Extract:
Question 1 of 5
A client presents to the clinic with intense itching at night and is diagnosed with Pinworms. The nurse anticipates the client would be placed on which medication to treat this condition?
Correct Answer: C
Rationale: Mebendazole (Vermox) is an anthelmintic medication specifically used to treat parasitic worm infections, including pinworms. It works by inhibiting the worms' ability to absorb glucose, leading to their death.
Question 2 of 5
The nurse is preparing to administer digoxin (Lanoxin) to a client experiencing atrial fibrillation. Which of the following electrolyte imbalances would the nurse assess to reduce the incidence of toxicity with digoxin?
Correct Answer: B
Rationale: Hypokalemia, or low potassium levels, significantly increases the risk of digoxin toxicity. Potassium and digoxin compete for binding at the same sites in the heart, and low potassium levels enhance digoxin's effects, potentially leading to toxicity.
Question 3 of 5
The nurse is administering an estrogen blocker to a client diagnosed with advanced breast cancer. Which of the following side effects will the nurse caution the client regarding?
Correct Answer: C
Rationale: Thromboembolic events are a well-known and significant risk associated with the use of estrogen blockers. These medications can increase the risk of blood clots, which can lead to serious conditions such as deep vein thrombosis, pulmonary embolism, or stroke. This is because estrogen has a protective effect on blood vessels and blood clotting, and blocking estrogen can disrupt this balance, increasing the propensity for clot formation.
Question 4 of 5
A client presents to the healthcare setting with a diagnosis of chronic liver failure. The nurse understands this will affect which step of pharmacokinetics?
Correct Answer: B
Rationale: Metabolism is a critical step in pharmacokinetics that is significantly affected by liver function. The liver is the primary organ responsible for the metabolism of most drugs.
Question 5 of 5
A nurse is preparing an in-service program about preventing medication errors when transcribing a prescription. The nurse is using a dosage example of two tenths of a milligram. Which of the following examples should the nurse use to show appropriate transcription of this dosage?
Correct Answer: D
Rationale: Writing the dosage as 0.2 mg is the correct way to transcribe two tenths of a milligram. It uses a leading zero before the decimal point, which helps prevent dosage errors.