ATI LPN
ATI LPN Pharmacology Exam Questions
Extract:
Question 1 of 5
A nurse is collecting data from a client prior to the administration of digoxin. Which of the following findings should the nurse report to the provider?
Correct Answer: A
Rationale:
Correct
Answer: A (Potassium level of 3.0 mEg/L)
Rationale: A potassium level of 3.0 mEg/L is concerning when administering digoxin as hypokalemia can potentiate its toxic effects, leading to serious cardiac arrhythmias. Low potassium levels increase the risk of digoxin toxicity.
Therefore, the nurse should report this finding to the provider for further evaluation and possible potassium supplementation.
Incorrect
Choices:
B: BP L 132/82 mm Hg - This blood pressure reading is within normal range and does not directly impact digoxin administration.
C: Digoxin level of 1.2 ng/mL - This level is within the therapeutic range for digoxin, so no immediate action is required.
D: Heart rate of 66/min - A heart rate of 66/min is within normal limits and does not indicate an immediate concern related to digoxin administration.
Question 2 of 5
A nurse is preparing to administer acetaminophen 10/mg/kg PO to a preschool child for fever. The child weighs 22 lb . Available is acetaminophen liquid 160mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: C
Rationale: The correct answer is C: 3.1 mL. First, convert the child's weight from lb to kg (22 lb / 2.2 = 10 kg).
Then, calculate the dose of acetaminophen for the child (10 mg/kg x 10 kg = 100 mg). Next, determine how many mL of the liquid acetaminophen will provide 100 mg (100 mg / 160 mg x 5 mL = 3.125 mL). Since we need to round to the nearest tenth, the correct answer is 3.1 mL.
Choice A (31 mL) is incorrect as it is a miscalculation based on misinterpreting the dosage.
Choice B (3 mL) is incorrect as it does not consider the child's weight.
Choice D (3 mg) is incorrect as it is significantly lower than the correct dosage.
Question 3 of 5
A nurse is calculating a client's fluid intake over the past 8 hr. The client had one 8-oz cup of coffee, 3 oz of juice, and 12 oz of soda. The client's water pitcher had 800 mL and 200 mL remain. The client also had IV fluids infusing at 40 mL/hr via an IV pump. How many mL should the nurse document as the client's total intake for the shift?
Correct Answer: C
Rationale: The correct answer is C: 1600 mL.
To calculate total intake, add up all sources: 8 oz coffee = 240 mL, 3 oz juice = 90 mL, 12 oz soda = 360 mL, remaining water in pitcher = 200 mL, total oral intake = 240 + 90 + 360 + 200 = 890 mL. IV fluids at 40 mL/hr for 8 hours = 320 mL.
Total intake = 890 mL + 320 mL = 1210 mL. So, the nurse should document 1210 mL oral intake + 400 mL IV fluids = 1600 mL total intake. Other choices are incorrect as they do not accurately calculate the total intake.
Question 4 of 5
Calculate the flow rate in mL/hr. and Units/hr. (Equipment used is programmable in whole mL/hr and Show all work) Order: 100 mL 0.45% NS in 45 min by infusion pump. Calculate rate in ml/hr
Correct Answer: A
Rationale:
To calculate the flow rate in mL/hr, we first convert 45 min to hours by dividing by 60 (45 min / 60 min/hr = 0.75 hr).
Then, we divide the total volume to be infused (100 mL) by the time in hours (0.75 hr) to get the flow rate in mL/hr: 100 mL / 0.75 hr = 133 mL/hr.
Therefore, the correct answer is A. Option B is incorrect as it is one-tenth of the correct value. Option C is incorrect as it is close but not the exact calculation. Option D is incorrect as it is also one-tenth of the correct value.
Question 5 of 5
Convert the following metric measures to kg by moving the decimal: 5,524 g
Correct Answer: A
Rationale: The correct answer is A: 5.524 kg.
To convert grams to kilograms, divide by 1000 since there are 1000 grams in 1 kilogram.
Therefore, 5,524 g ÷ 1000 = 5.524 kg.
Choice B is incorrect because it incorrectly moves the decimal two places to the left.
Choice C is incorrect as it moves the decimal one place too many to the right.
Choice D is incorrect as it adds unnecessary zeros after the decimal point.