ATI LPN
ATI LPN Pharmacology Exam Questions
Question 1 of 5
Before drug reconstitution, the nurse would check the drug circular and/or drug label for instructions. After a drug has been reconstituted and additional doses are available, which information would the nurse write on the drug label? (Select all that apply.)
Correct Answer: B,C,D
Rationale: The correct answers are B, C, and D. B: The diluent should be recorded on the label for future reference. C: The date to discard is crucial to ensure the drug's potency and safety. D: Initials are important for tracking who reconstituted the drug. A is incorrect as the provider's order is typically documented in the patient's chart, not on the drug label.
Choices E, F, and G are left blank as they are not relevant to the information needed on a drug label post-reconstitution.
Question 2 of 5
A physician ordered 1/4 strength Isomil 12 oz via nasogastric tube over 6 hours. How much solvent (water) will be needed?
Correct Answer: B
Rationale: The correct answer is B: 270 mL.
To calculate the amount of solvent needed, we first find the total volume of the Isomil solution: 12 oz x 1/4 = 3 oz. Next, convert 3 oz to mL (1 oz = 30 mL), so 3 oz x 30 mL/oz = 90 mL. Since the Isomil solution will be administered over 6 hours, divide 90 mL by 6 hours to get the rate per hour: 90 mL / 6 hours = 15 mL/hour. Finally, multiply the rate per hour by the total duration (6 hours): 15 mL/hour x 6 hours = 90 mL.
Therefore, the total amount of solvent needed is 90 mL, and when added to the 12 oz of Isomil, the total volume is 270 mL. Other choices are incorrect because they do not follow the correct calculations based on the given information.
Question 3 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 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 hydrocortisone 100 mg IM daily to a client. Available is hydrocortisone 250 mg/2 mL. How many mi should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if applies. Do not use a trailing zero.)
Correct Answer: B
Rationale: The correct answer is B: 0.8 mL.
To determine the correct dose, first, calculate the total volume needed for 100 mg of hydrocortisone using the given concentration (250 mg/2 mL). Set up a proportion: 250 mg is to 2 mL as 100 mg is to X mL. Cross multiply to get 250X = 200, then divide by 250 to find X = 0.8 mL. This calculation ensures the correct dosage is administered.
Choice A (3 mL) is incorrect as it does not accurately reflect the calculated dose.
Choice C (8 mL) is incorrect as it is too high of a volume for the dose required.
Choice D (0.08 mL) is incorrect as it is too low of a volume for the dose needed.