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HESI Dosage Calculations 2024 Exam Questions with Verified Answers | Latest (2024/2025) (Verified Answers)

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A client who had a small bowel resection two weeks ago is receiving 3/4 strength Ensure feedings 275 ml q4 hours via nasogastric tube. Full strength Ensure is available in a 240 ml can.The practical nurse (PN) should use how many ml of Ensure to prepare the feeding? (Enter numeric value only. Ro...

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  • November 13, 2024
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  • 2024/2025
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  • HESI Dosage Calculation
  • HESI Dosage Calculation
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HESI Dosage Calculation Questions & Answers



1. A client who had a small bowel resection two weeks ago is receiving 3/4

strength Ensure feedings 275 ml q4 hours via nasogastric tube. Full strength

Ensure is available in a 240 ml can.The practical nurse (PN) should use how

many ml of Ensure to prepare the feeding? (Enter numeric value only. Round to

nearest whole number if needed.)

Answer 206

Using the formula Desired % / on Hand % x Volume Desired =

75/100 x 275 = .75 x 275 = 206 Ensure

206 ml Ensure + 69ml water = 275 ml (75% solution)



2. The healthcare provider prescribes an IV infusion of 0.9% sodium chloride

with 40 mEq KCl/500 ml to infuse over 3 hours for a client with hypokalemia.

The practical nurse should program the infusion pump to deliver how many

ml/hour? (Enter numeric value only. If rounding is required, round to the

nearest whole number.)

1/




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Answer 167

To determine ml/hour

500 ml ;3 hours as X ml ;1 hour

500/X ; 3/1

500 = 3X

X = 166.66 (rounds to)= 167 ml/hour



3. A child weighing 28.4 kg is hypertensive.The healthcare provider prescibes

methyldopa (Aldomet) 40 mg/kg/day IV in 4 divided doses. The pharmacy

provides a 50 mg/ml injection vial. How many ml should the practical nurse

administer? (Enter numeric value only. If rounding is required, round to the

nearest tenth.)

Answer 5.7

First calculate the total mg dose/day

40 mg x 28.4 kg = 1136 mg/day

Next divide the total mg into the 4 dosages for the day

1136 mg/4 doses = 284 mg/dose Using the Desired/Have formula

284mg/50mg x 1 ml = 5.68 ml/ dose or 5.7 ml.


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4. A client with pericardial effusion has phrenic nerve compression result- ing

in recurrent hiccups.The healthcare provider prescribes metoclopramide

(Reglan) liquid 10 mg PO q6 hours. Reglan is available as 5 mg/5 ml. A

measuring device marked in teaspoons is being used. How many teaspoons

should the practical nurse administer?

Answer 2

First, using the formula, Desired dose/dose on Hand x Quantity of volume on hand

(D/H x Q),

10 mg / 5 mg x 5ml = 10 ml

Next using the known conversion of 5 ml = 1 tsp;5

ml ;1 tsp ;10 ml ;X




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