HESI DOSAGE CALCULATIONS QUESTIONS AND
ANSWERS 2024 UPDATE A+
The healthcare provider prescribes furosemide (Lasix) 25 mg IV. The drug is
available in a solution of 40 mg/4ml. How many ml should the practical nurse
administer? (Enter numeric value only. If rounding is required, round to the nearest
tenth.) - ANS-2.5
A client with hypernatremia is to receive an IV infusion of 1000 ml 5% dextrose in
water to be infused over 6 hours. 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.) - ANS-167
A client admitted to the unit from the emergency room receives a prescription for an
IV infusion of 0.9% sodium chloride 1,000 ml at 750 ml/4 hours. The IV administration
set delivers 60 gtts/ml. The practical nurse should program the infusion pump to
deliver how many gtts/minute? (Enter numeric value only. If rounding is required,
round to the nearest whole number.) - ANS-188
Rationale
First convert hours to minutes: 4 hours x 60 = 240 minutes
Using formula Volume/Time x gtt factor:
750 ml/240 min = 3.125 x 60gtts = 187.5 (rounding to) 188 gtts/minute
A client who weighs 21.1 kg is receiving calcium chloride PO. The drug literature
recommends 20 mg/kg/dose. How many mg should the practical nurse (PN)
determine is the recommended dose for this client?(Enter numerical value only.) -
ANS-422
A client receives a prescription for nafcillin 0.75 grams IV. The dispensed medication is
labeled in mg. How many mg should the practical nurse administer? (Enter numerical
value only.) - ANS-750
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.) -
ANS-167
A client receives a prescription for digoxin 500 mcg PO. The dispensed medication
is labeled in mg. How many mg should the practical nurse administer? (Enter
numerical value only. If rounding is required round to the nearest tenth.) - ANS-0.5
A client with pericardial effusion has phrenic nerve compression resulting 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? - ANS-2
A client has a prescription for inamrinone (Inocor) 0.75 mg/kg IV bolus to be delivered
over 3 minutes. The client weighs 80 kg. Inamrinone is available for injection 100
mg/20 ml. How many ml of inamrinone should the practical nurse administer? (Enter
numeric value only. If rounding is required, round to the nearest tenth.) - ANS-12
A client is receiving acetaminophen (Tylenol) 0.65 gram PO every 6 hours PRN for
pain. Acetaminophen is available in 325 mg tablets. How many milligrams should the
practical nurse administer? (Enter numeric value only.) - ANS-650
The healthcare provider prescribes acetaminophen elixir (Tylenol elixir) 600 mg PO
q6 hours for an adult client experiencing pain associated with maxillofacial surgery.
The bottle is labeled 500 mg/15 ml. How many ml should the practical nurse
administer? (Enter numeric value only. If rounding is required, round to the nearest
tenth.) - ANS-18
A client with type 2 diabetes is receiving metformin (Glucophage) 1 gram PO twice
daily. The medication is available in 500 mg tablets. How many tablets should the
practical nurse administer? (Enter numeric value only.) - ANS-2
A client who weighs 70 pounds receives a prescription for phenytoin (Dilantin) PO.
The practical nurse (PN) refers to the published drug literature which recommends
the dose of 10 mg/kg/day. How many mg should the PN determine is the
recommended dose for this client? (Enter numerical value only. If rounding is
required, round to the nearest whole number.) - ANS-318
Rationale
2.2 pounds = 1 kg, so 70 pounds = 31.8181 kg31.8181 x 10 mg/1 kg/day = 318.181 or
318 mg/day
A client who has a sinus infection is receiving a prescription for amoxicillin/clavulanate
potassium (Augmentin) 500 mg PO q8 hours. The available form is 250 mg
amoxicillin/125mg clavulanate tablets. How many tablets should the practical nurse
administer for each dose? (Enter numeric value only.) - ANS-2
A client with a gastrostomy tube (GT) receives a prescription for a 250 ml bolus
feeding of Glucerna 60% enteral formula. The PN should dilute the full-strength
formula with how many ml of water? (Enter numeric value only). - ANS-100
Rationale
Use the formula, Desired strength/strength on Hand x Volume
60/100 x 250 = 15000/100 = 150 ml of Glucerna enteral formula
Or use ratio and proportion, Desired strength (60%) :: Volume (full strength) : Desire
volume
ANSWERS 2024 UPDATE A+
The healthcare provider prescribes furosemide (Lasix) 25 mg IV. The drug is
available in a solution of 40 mg/4ml. How many ml should the practical nurse
administer? (Enter numeric value only. If rounding is required, round to the nearest
tenth.) - ANS-2.5
A client with hypernatremia is to receive an IV infusion of 1000 ml 5% dextrose in
water to be infused over 6 hours. 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.) - ANS-167
A client admitted to the unit from the emergency room receives a prescription for an
IV infusion of 0.9% sodium chloride 1,000 ml at 750 ml/4 hours. The IV administration
set delivers 60 gtts/ml. The practical nurse should program the infusion pump to
deliver how many gtts/minute? (Enter numeric value only. If rounding is required,
round to the nearest whole number.) - ANS-188
Rationale
First convert hours to minutes: 4 hours x 60 = 240 minutes
Using formula Volume/Time x gtt factor:
750 ml/240 min = 3.125 x 60gtts = 187.5 (rounding to) 188 gtts/minute
A client who weighs 21.1 kg is receiving calcium chloride PO. The drug literature
recommends 20 mg/kg/dose. How many mg should the practical nurse (PN)
determine is the recommended dose for this client?(Enter numerical value only.) -
ANS-422
A client receives a prescription for nafcillin 0.75 grams IV. The dispensed medication is
labeled in mg. How many mg should the practical nurse administer? (Enter numerical
value only.) - ANS-750
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.) -
ANS-167
A client receives a prescription for digoxin 500 mcg PO. The dispensed medication
is labeled in mg. How many mg should the practical nurse administer? (Enter
numerical value only. If rounding is required round to the nearest tenth.) - ANS-0.5
A client with pericardial effusion has phrenic nerve compression resulting 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? - ANS-2
A client has a prescription for inamrinone (Inocor) 0.75 mg/kg IV bolus to be delivered
over 3 minutes. The client weighs 80 kg. Inamrinone is available for injection 100
mg/20 ml. How many ml of inamrinone should the practical nurse administer? (Enter
numeric value only. If rounding is required, round to the nearest tenth.) - ANS-12
A client is receiving acetaminophen (Tylenol) 0.65 gram PO every 6 hours PRN for
pain. Acetaminophen is available in 325 mg tablets. How many milligrams should the
practical nurse administer? (Enter numeric value only.) - ANS-650
The healthcare provider prescribes acetaminophen elixir (Tylenol elixir) 600 mg PO
q6 hours for an adult client experiencing pain associated with maxillofacial surgery.
The bottle is labeled 500 mg/15 ml. How many ml should the practical nurse
administer? (Enter numeric value only. If rounding is required, round to the nearest
tenth.) - ANS-18
A client with type 2 diabetes is receiving metformin (Glucophage) 1 gram PO twice
daily. The medication is available in 500 mg tablets. How many tablets should the
practical nurse administer? (Enter numeric value only.) - ANS-2
A client who weighs 70 pounds receives a prescription for phenytoin (Dilantin) PO.
The practical nurse (PN) refers to the published drug literature which recommends
the dose of 10 mg/kg/day. How many mg should the PN determine is the
recommended dose for this client? (Enter numerical value only. If rounding is
required, round to the nearest whole number.) - ANS-318
Rationale
2.2 pounds = 1 kg, so 70 pounds = 31.8181 kg31.8181 x 10 mg/1 kg/day = 318.181 or
318 mg/day
A client who has a sinus infection is receiving a prescription for amoxicillin/clavulanate
potassium (Augmentin) 500 mg PO q8 hours. The available form is 250 mg
amoxicillin/125mg clavulanate tablets. How many tablets should the practical nurse
administer for each dose? (Enter numeric value only.) - ANS-2
A client with a gastrostomy tube (GT) receives a prescription for a 250 ml bolus
feeding of Glucerna 60% enteral formula. The PN should dilute the full-strength
formula with how many ml of water? (Enter numeric value only). - ANS-100
Rationale
Use the formula, Desired strength/strength on Hand x Volume
60/100 x 250 = 15000/100 = 150 ml of Glucerna enteral formula
Or use ratio and proportion, Desired strength (60%) :: Volume (full strength) : Desire
volume
