Hesi Dosage Practice Questions and Answers
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.
Ans: 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.)
Ans: 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.
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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.)
Ans: 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.)
Ans: 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.)
Ans: 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 =
300 mg/200 mg x 1 = 1.5 tablets
A 110-pound, adult female is admitted to the Emergency Center
after receiving burns to 40 percent of her body. Using the Parkland
formula, the client's fluid requirements for the first 24 hours after
injury is calculated using Lactated Ringer's 4 ml solution x Body
weight (in kilograms) x Percent burn. The client should receive
one-half of the 24-hour calculated fluid volume in the first 8 hours
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