ATI RN
ATI N303 Pharmacology Exam Questions
Extract:
Question 1 of 5
A nurse is teaching a class about pharmacodynamics. The nurse should include that which of the following medication levels occurs when a medication is at the lowest serum concentration?
Correct Answer: D
Rationale: The trough level represents the lowest serum concentration before the next dose, ensuring the medication remains within therapeutic range.
Question 2 of 5
A nurse is caring for a client who has heart failure and a prescription for digoxin 125 mcg PO daily. Available is digoxin PO 0.25 mg/tablet. How many tablets should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: A
Rationale:
To calculate: 125 mcg = 0.125 mg; 0.125 mg ÷ 0.25 mg/tablet = 0.5 tablets, ensuring the correct digoxin dose.
Question 3 of 5
A nurse is preparing to administer medications to a client who states, 'I don't want to take those drugs.' Which of the following actions should the nurse take?
Correct Answer: B
Rationale: Asking the client why they refuse helps identify concerns or misconceptions, allowing the nurse to address them and promote informed decision-making.
Question 4 of 5
A nurse is preparing to administer an ophthalmic medication to a client. Which of the following actions should the nurse plan take?
Correct Answer: A
Rationale: Applying pressure to the nasolacrimal duct minimizes systemic absorption, enhancing the medication's local effect and reducing potential side effects.
Question 5 of 5
A nurse is preparing to administer morphine sulfate 2 mg IV bolus. Available is morphine sulfate 10 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: A
Rationale:
To calculate: 2 mg ÷ 10 mg/mL = 0.2 mL. Administering 0.2 mL ensures the correct dose of morphine sulfate is given.