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Dosage calculations Updated Questions and Answers (2024/2025) (Verified Answers)
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Dosage calculations Updated Questions and Answers (2024/2025) (Verified Answers)
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Dosage calculations.pdf file:///C:/Users/HP/Desktop/New%20folder%20(4)/Dosage%20calculDosage Calculations Exam Questions &
Answers Verified 100%
1. Heparin protocol is prescribed for a client weighing 90 kg. Per protocol, the
heparin loading dose is 60 units/kg IV rounded to the nearest 100 units, with a
maximum loading dose of 4,000 units.The heparin vial is labeled 5,000
units/ml. How many ml should the nurse administer? (Enter the numeric value
only. If rounding is required, round to the nearest tenth.)
false Item 51164 By Sheila Duncan Heparin Protocol:
Heparin loading dose: 60 units/kg IV, rounded to the nearest 100 units, followedby
a maintenance infusion of 12 units/kg/hr, rounded to the nearest 100 units/hr.
The maximum bolus is 4,000 units and the maximum initial infusion is 1000
units/hr.: Determine the client loading dose: 60 units x 90 kg = 5,400 unit.Per
protocol, use the maximum loading dose of 4,000 units, and calculate the client'sdose
using the formula D/H x Q = 4,000 units / 5,000 units x 1 ml = 4/5 = 0.8 ml
or Use ratio and proportion: 5,000 : 1 ml :: 4,000 : XX
= 0.8 ml
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2. A child weighing 28.4 kg is in hypertensive crisis. 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 nurse
administer? (Enter numeric value only. If rounding is required, round to the
nearest tenth.): 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: 284 mg/50mg x 1 ml = 5.68 ml/ dose, rounded to
5.7 ml.
3. A client with multiple sclerosis and muscle spasms receives a prescriptionfor
baclofen (Kemstro) 30 mg PO daily. The medication is supplied from the
pharmacy in 20 mg scored tablets. How many tablets should the nurse admin-
ister? (Enter numeric value only. If rounding is required, round to the nearest
tenth.): Use ratio and proportion, 30 mg : X tablets = 20 mg : 1 tablet
20X = 30
X = 1.5
4. A client with dehydration receives a prescription for an IV of Lactated
Ringer's 1,000 ml to be administered over 8 hours.The nurse should program
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the infusion pump to deliver how many ml/hour? (Enter numeric value only,
using whole number.): Use the ratio of: 1000 ml : 8 hours :: X : 1 hour
1000/X :: 8/1
X = 125 ml/hour
5. The nurse plans to administer labetalol hydrochloride (Trandate) 0.3 grams
PO to a client with hypertension.Trandate is available in 200 mg scored
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