HESI
DOSAGE CALCULATION ACTUAL EXAM
QUESTIONS AND ANSWERS TETSED AND
APPROVED!!!!
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
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.)
-- ANSWER--167
To determine ml/hour:
500 ml : 3 hours :: as X ml : 1 hour
500/X :: 3/1
500 = 3X
Page 1 of 41
,X = 166.66 (rounds to)= 167 ml/hour
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
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
: 1 / X
5X = 10
X=2
Page 2 of 41
,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
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.)
-- 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
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
Page 3 of 41
, 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
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
: 1 / X
5X = 10
X=2
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.)
-- ANSWER--2
Page 4 of 41
DOSAGE CALCULATION ACTUAL EXAM
QUESTIONS AND ANSWERS TETSED AND
APPROVED!!!!
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
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.)
-- ANSWER--167
To determine ml/hour:
500 ml : 3 hours :: as X ml : 1 hour
500/X :: 3/1
500 = 3X
Page 1 of 41
,X = 166.66 (rounds to)= 167 ml/hour
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
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
: 1 / X
5X = 10
X=2
Page 2 of 41
,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
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.)
-- 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
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
Page 3 of 41
, 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
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
: 1 / X
5X = 10
X=2
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.)
-- ANSWER--2
Page 4 of 41
