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Dosage calculations Exam Practice Questions and Answers | 100% Pass

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Dosage calculations Exam Practice Questions and Answers | 100% Pass 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 5,00...

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  • September 14, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Dosage Calculation
  • Dosage Calculation
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©SOPHIABENNETT_2024/2025 EXAM SERIES Monday, September 2, 2024 9:52 AM



Dosage calculations Exam Practice
Questions and Answers | 100% Pass

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, followed by 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. -

Answer✔️✔️-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's

dose 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 : X

X = 0.8 ml

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.) - Answer✔️✔️-First calculate the

total mg dose/day: 40 mg x 28.4 kg = 1136 mg/day



Page | 1

, ©SOPHIABENNETT_2024/2025 EXAM SERIES Monday, September 2, 2024 9:52 AM


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.

A client with multiple sclerosis and muscle spasms receives a prescription for baclofen

(Kemstro) 30 mg PO daily. The medication is supplied from the pharmacy in 20 mg

scored tablets. How many tablets should the nurse administer? (Enter numeric value

only. If rounding is required, round to the nearest tenth.) - Answer✔️✔️-Use ratio and

proportion, 30 mg : X tablets = 20 mg : 1 tablet

20X = 30

X = 1.5

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 the infusion pump to deliver

how many ml/hour? (Enter numeric value only, using whole number.) - Answer✔️✔️-Use

the ratio of: 1000 ml : 8 hours :: X : 1 hour

1000/X :: 8/1

X = 125 ml/hour

The nurse plans to administer labetalol hydrochloride (Trandate) 0.3 grams PO to a

client with hypertension. Trandate is available in 200 mg scored tablets. How many

tablets should the nurse administer? (Enter numeric value only.) - Answer✔️✔️-First

convert grams to milligrams using the known conversion: 1 gram = 1000 mg.

0.1 gram = 100 mg as 0.3 gram = 300 mg

Next using the formula, Desired/Available x 1 tablet =

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