ATI LPN
ATI LPN Pharmacology Exam Questions
Extract:
Question 1 of 5
A nurse is assisting with care of a cient who has a prescription for 3000 ml of intravenous huias over the nes:24 hr The nurse should set the IV pump to deliver how many mL/hr? (Round to the nearest whole number)
Correct Answer: A
Rationale:
To calculate the IV rate, divide the total volume by the total hours: 3000 ml / 24 hr = 125 mL/hr.
Choice A is correct as it accurately calculates the hourly rate of IV fluids.
Choice B, 30 mL/hr, is incorrect as it does not divide 3000 ml by 24 hr.
Choice C, 100 mL/hr, is incorrect as it does not calculate the correct division of volume by time.
Choice D, 12.5 mL/hr, is incorrect as it miscalculates the rate.
Question 2 of 5
A nurse iS reinforcing teaching with a newly licensed nurse regarding sources of medication information. Which of the following resources should the nurse include as reliable references for the nurse to use to evaluate medication information? (Select All that Apply.)
Correct Answer: C,D,E,F
Rationale: The correct answers are C, D, E, and F. Physicians' Desk Reference (PDR), Lexicomp, Micromedex, and American Hospital Formulary Service (AHFS) Drug Information are reliable medication information sources. PDR contains FDA-approved drug information, Lexicomp and Micromedex provide comprehensive drug information for healthcare professionals, and AHFS Drug Information offers evidence-based drug monographs. These references are reputable, evidence-based, and widely recognized in the healthcare industry. On the other hand, social media and Wikipedia are not reliable sources for medication information as they lack professional credibility, accuracy, and peer-reviewed content. It is crucial for nurses to rely on credible and evidence-based sources to ensure patient safety and accurate medication administration.
Question 3 of 5
What are the two main purposes for diuretics?
Correct Answer: A
Rationale: The correct answer is A: The two main purposes for diuretics are to decrease fluid and decrease hypertension (lower blood pressure). Diuretics work by increasing urine output, which helps to reduce fluid volume in the body. This decrease in fluid volume leads to a reduction in blood pressure, making diuretics an effective treatment for hypertension. Other choices are incorrect because they either do not correctly describe the main purposes of diuretics or provide contradictory information.
Choice B incorrectly states that diuretics increase blood pressure, which is not true.
Choices C and D also provide incorrect information about the effects of diuretics on fluid balance and blood pressure.
Question 4 of 5
Order: 1 liter or 1000 mL of D5W to infuse over 6 hours Available: Macrodrip set: 10 gtt/mL The IV flow rate would be ______gtt/min.
Correct Answer: A
Rationale:
To calculate the IV flow rate in gtt/min, we first convert 1 liter to mL (1 L = 1000 mL).
Then, we divide the total mL by the total hours to infuse (1000 mL / 6 hours = 166.67 mL/h). Next, we multiply the mL/h by the drip factor (166.67 mL/h x 10 gtt/mL = 1667 gtt/h). Finally, we convert gtt/hr to gtt/min by dividing by 60 (1667 gtt/h / 60 min = 27.78 gtt/min, rounded to 28 gtt/min).
Therefore, the correct answer is A (28 gtt/min). Other choices are incorrect because they do not follow the correct calculations or have rounding errors.
Question 5 of 5
A nurse is preparing to administer dopamine 3mcg/kg/min by continuous IV infusion to a preschooler who weighs 41.8 bs. Available is dopamine 400 mg in dextrose 596 in water (D5W) 250 mL. The nurse should set the IV pump to deliver how many ml/hr? (Round to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: A
Rationale:
To calculate the IV pump rate for dopamine infusion, first, calculate the total dose required: 3mcg/kg/min x 41.8 lbs = 3mcg/kg/min x 18.98 kg = 56.94 mcg/min.
Then convert mcg to mg: 56.94 mcg/min ÷ 1000 = 0.05694 mg/min. Since there are 400 mg of dopamine in 250 mL, the rate would be: 0.05694 mg/min ÷ 400 mg/250 mL = 0.05694 mg/min x 250 mL / 400 mg = 0.0356 mL/min = 2.1 mL/hr (rounded to the nearest tenth).
Therefore, the correct answer is A: 2.1 mL/hr. Other choices are incorrect as they do not result from the accurate dosage calculation.