ATI LPN
ATI LPN Pharmacology Exam Questions
Extract:
Question 1 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: Concentration = 0.25 mg/mL. Volume = 1 mg / 0.25 mg/mL = 4 mL.
Question 2 of 5
Calculate the following dosage using ratio and proportions method (Round answers to the nearest tenth). Order: Digoxin 0.375mg p. o. daily. Available: Digoxin (scored tablets) labeled 0.25mg
Correct Answer: B
Rationale: Tablets = 0.375 mg / 0.25 mg/tablet = 1.5 tablets.
Question 3 of 5
A nurse is calculating the fluid intake for an infant at the end of an 8-hr shift. For oral intake, the infant had 10 mL of medication, 3 oz of formula, and 2 oz of juice. In addition, the infant had IV fluid infusing at 20 mL/hr via an IV pump. The nurse should record how many mL of intake on the clients record? (Round the answer to the nearest whole number.)
Correct Answer: C
Rationale: Formula = 3 × 30 = 90 mL, Juice = 2 × 30 = 60 mL, Oral = 10 + 90 + 60 = 160 mL, IV = 20 × 8 = 160 mL.
Total = 320 mL.
Question 4 of 5
What are the two main purposes for diuretics?
Correct Answer: A
Rationale: Diuretics reduce fluid volume and lower blood pressure.
Question 5 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: Antacids reduce digoxin absorption; spacing by 2 hours prevents interaction.