ATI LPN
ATI LPN Pharmacology Exam Questions
Extract:
Question 1 of 5
A client who is taking digoxin asks the nurse if they can take an antacid for heartburn. What is the nurse's best response?
Correct Answer: C
Rationale: The correct answer is C. Antacids can interfere with the absorption of digoxin if taken simultaneously, leading to decreased drug effectiveness. Instructing the client to take the antacid at least 2 hours before or after digoxin administration helps avoid this interaction.
Choice A is incorrect because taking antacids with digoxin directly may not be advisable.
Choice B is incorrect as it oversimplifies the potential interaction between digoxin and antacids.
Choice D is incorrect as it correctly identifies the interaction but does not provide a practical solution.
Question 2 of 5
Calculate the dosage using the label below. Round to the nearest tenth place. Order: Bumex (bumetanide) 1 mg IV daily Available:
Correct Answer: C
Rationale: The correct answer is C: 4 mL.
To calculate the dosage of Bumex (bumetanide) 1 mg IV daily, we need to use the formula: Dosage = Amount needed (mg) / Amount available (mg/mL). In this case, 1 mg / 0.25 mg/mL = 4 mL.
Therefore, the correct dosage is 4 mL.
Choice A (3 mL) is incorrect because it does not provide the accurate amount needed for the 1 mg dose.
Choice B (2 mL) is also incorrect as it underestimates the required dosage.
Choice D (6 mL) is incorrect as it overestimates the amount needed for the 1 mg dose.
Question 3 of 5
Using abbreviations and the rules of the metric system, express the following quantities correctly: Six hundredth:
Correct Answer: B
Rationale: The correct answer is B: 0.06 g. The prefix "centi-" in the metric system represents one-hundredth, so "hundredth" corresponds to the centi- prefix.
Therefore, to express six hundredth correctly, it should be written as 0.06 g.
Choice A is incorrect because it represents 600 grams, which is not the correct unit for six hundredth.
Choice C is incorrect as it represents 0.006, which is one thousandth, not hundredth.
Choice D is incorrect as it represents 0.6 grams, which is six tenths, not hundredths.
Question 4 of 5
The physician ordered 2/3 strength Ensure 6 oz PO q4h for 24 hrs. What is the total volume in mL you would administer in 24 hrs?
Correct Answer: D
Rationale:
To find the total volume in mL to be administered in 24 hours, we first calculate the volume for each dose: 2/3 strength Ensure is 6 oz, which is 177.441 mL. Administered every 4 hours for 24 hours gives us 6 doses. Multiplying 177.441 mL by 6 doses equals 1064.646 mL. Rounding up to the nearest whole number, the total volume to administer in 24 hours is 1080 mL, which is option D. Other choices are incorrect because they do not accurately calculate the total volume needed based on the given information.
Question 5 of 5
Who is the primary authority source for drug standards in the United States?
Correct Answer: B
Rationale: The correct answer is B: Food and Drug Administration (FD
A). The FDA is responsible for regulating and overseeing the standards for drug safety, efficacy, and quality in the United States. They review and approve new drugs before they can be marketed, set guidelines for manufacturing practices, and monitor drug safety post-market. The DEA (
A) focuses on enforcing controlled substance laws, CDC (
C) focuses on public health, and NIH (
D) is primarily a research agency.
Choices E, F, and G are irrelevant and do not pertain to drug standards.