Calculations V: Exam-Style Math 2025
LK is admitted to the medical floor for a hypertensive emergency. His medication orders are as follows:
*Demographics/Vitals:*
Age: 61, Weight: 185 lbs
BP: 215/101 mmHg, HR: 108 BPM
*Medications:*
*March 4:*
Nitroprusside drip 50 mg/250 mL start at 0.5 mcg/kg/min titrate by 0.5 mcg/kg/min Q10min
Clonidine 0.1 mg PO BID
D5NS at 60 mL/hr
Protonix 40 mg daily
Zoloft 50 mg PO daily
Heparin 5,000 units SC BID
*March 5:*
Nitroprusside drip 50 mg/250 mL continue to titrate PRN max rate = 10 mcg/kg/min
Clonidine 0.1 mg PO BID
D5 1/2NS at 50 mL/hr
Protonix 40 mg daily
Zoloft 50 mg PO daily
Heparin 5,000 units SC BID
How many milliequivalents of sodium chloride will LK receive per day from the IV fluid ordered on March
5th? (MW of Na = 23, MW of Cl = 35.5). (Answer must be numeric; no units or commas; round the final
answer to the nearest whole number.) - Precise Answer ✔✔50 mL/hr x 24 hr/day = 1200 mL/day
,0.45 g/100 mL = X g/1200 mL
X = 5.4 g = 5400 mg
mEq = (5400 mg x 1)/58.5 = 92 mEq
TH is a 62-year-old male (weight 89 kg, height 6'2") who is confined to bed (activity factor 1.2) due to
severe pneumonia (stress factor 1.5). He requires 1.5 g/kg/day of protein (based on his total body
weight), which will be provided by Aminosyn 15%. How many milliliters of Aminosyn 15% should he
receive? (Answer must be numeric; no units or commas; round the final answer to the nearest whole
number.) - Precise Answer ✔✔1.5 g/kg/day x 89 kg = 133.5 g/day
15 g/100 mL = 133.5 g/X mL
X = 890 mL
TM has had HCV for many years. She was treated briefly in 2001, but was non-adherent with clinic visits
and medications. She started treatment with Sovaldi, Ribasphere and Pegasys two weeks ago based on
her HCV genotype. Over the weekend she was admitted to the hospital and the following labs were
obtained:
*Labs:*
WBC (cells/mm^3) = 3.1 (4 - 11 x 10^3)
Neut (%) = 14.8 (45-73)
Bands (%) = 6 (3-5)
Calculate the patient's ANC. (Answer must be numeric; no units or commas; round the final answer to
the nearest whole number.) - Precise Answer ✔✔ANC = 3100 x [(14.8 + 6)/100] = 644.8 = 645
A pharmacist has a prescription for 90 compounded glycerin suppositories using the following formula:
Glycerin 91 g
Sodium stearate 9 g
, Purified water 5 g
M. ft. suppositories #50
How many milliliters of glycerin will be needed to prepare the desired number of suppositories? (SG of
glycerin = 1.25). (Answer must be numeric; no units or commas; round the final answer to the nearest
whole number.) - Precise Answer ✔✔91 g/50 suppositories = X g/90 suppositories
X = 163.8 g
1.25 = 163.8 g/X mL
X = 131.04 = 131 mL
A hospital pharmacist receives a prescription for 3% saline for a patient in the Neuro ICU. The premixed
3% saline bags that the pharmacy normally stocks are on backorder. How many milliequivalents of
23.4% NaCl will need to be added to a 1 liter bag of normal saline to prepare 3% saline for this patient?
(MW of Na = 23; MW of Cl = 35.5). (Answer must be numeric; no units or commas; round the final
answer to the nearest tenth.) - Precise Answer ✔✔2.1 parts of 23.4% (3% - 0.9%) -- X mL
20.4 parts of 0.9% (23.4% - 3%) -- 1000 mL
22.5 parts of 3% (2.1 + 20.4)
2.1 parts of 23.4%/20.4 parts of 0.9% = X mL/1000 mL
X = 102.9412 mL of 23.4%
X g/102.9412 mL = 23.4 g/100 mL
X = 24.088 g
mEq = (24088 mg x 1)/58.5 = 411.8 mEq
A patient is receiving 650 mL of 10% lipids. How many kcals is the patient receiving from the lipids?
(Answer must be numeric; no units or commas; round the final answer to the nearest whole number.) -
Precise Answer ✔✔1.1 kcal/mL x 650 mL = 715 kcal
LK is admitted to the medical floor for a hypertensive emergency. His medication orders are as follows:
*Demographics/Vitals:*
Age: 61, Weight: 185 lbs
BP: 215/101 mmHg, HR: 108 BPM
*Medications:*
*March 4:*
Nitroprusside drip 50 mg/250 mL start at 0.5 mcg/kg/min titrate by 0.5 mcg/kg/min Q10min
Clonidine 0.1 mg PO BID
D5NS at 60 mL/hr
Protonix 40 mg daily
Zoloft 50 mg PO daily
Heparin 5,000 units SC BID
*March 5:*
Nitroprusside drip 50 mg/250 mL continue to titrate PRN max rate = 10 mcg/kg/min
Clonidine 0.1 mg PO BID
D5 1/2NS at 50 mL/hr
Protonix 40 mg daily
Zoloft 50 mg PO daily
Heparin 5,000 units SC BID
How many milliequivalents of sodium chloride will LK receive per day from the IV fluid ordered on March
5th? (MW of Na = 23, MW of Cl = 35.5). (Answer must be numeric; no units or commas; round the final
answer to the nearest whole number.) - Precise Answer ✔✔50 mL/hr x 24 hr/day = 1200 mL/day
,0.45 g/100 mL = X g/1200 mL
X = 5.4 g = 5400 mg
mEq = (5400 mg x 1)/58.5 = 92 mEq
TH is a 62-year-old male (weight 89 kg, height 6'2") who is confined to bed (activity factor 1.2) due to
severe pneumonia (stress factor 1.5). He requires 1.5 g/kg/day of protein (based on his total body
weight), which will be provided by Aminosyn 15%. How many milliliters of Aminosyn 15% should he
receive? (Answer must be numeric; no units or commas; round the final answer to the nearest whole
number.) - Precise Answer ✔✔1.5 g/kg/day x 89 kg = 133.5 g/day
15 g/100 mL = 133.5 g/X mL
X = 890 mL
TM has had HCV for many years. She was treated briefly in 2001, but was non-adherent with clinic visits
and medications. She started treatment with Sovaldi, Ribasphere and Pegasys two weeks ago based on
her HCV genotype. Over the weekend she was admitted to the hospital and the following labs were
obtained:
*Labs:*
WBC (cells/mm^3) = 3.1 (4 - 11 x 10^3)
Neut (%) = 14.8 (45-73)
Bands (%) = 6 (3-5)
Calculate the patient's ANC. (Answer must be numeric; no units or commas; round the final answer to
the nearest whole number.) - Precise Answer ✔✔ANC = 3100 x [(14.8 + 6)/100] = 644.8 = 645
A pharmacist has a prescription for 90 compounded glycerin suppositories using the following formula:
Glycerin 91 g
Sodium stearate 9 g
, Purified water 5 g
M. ft. suppositories #50
How many milliliters of glycerin will be needed to prepare the desired number of suppositories? (SG of
glycerin = 1.25). (Answer must be numeric; no units or commas; round the final answer to the nearest
whole number.) - Precise Answer ✔✔91 g/50 suppositories = X g/90 suppositories
X = 163.8 g
1.25 = 163.8 g/X mL
X = 131.04 = 131 mL
A hospital pharmacist receives a prescription for 3% saline for a patient in the Neuro ICU. The premixed
3% saline bags that the pharmacy normally stocks are on backorder. How many milliequivalents of
23.4% NaCl will need to be added to a 1 liter bag of normal saline to prepare 3% saline for this patient?
(MW of Na = 23; MW of Cl = 35.5). (Answer must be numeric; no units or commas; round the final
answer to the nearest tenth.) - Precise Answer ✔✔2.1 parts of 23.4% (3% - 0.9%) -- X mL
20.4 parts of 0.9% (23.4% - 3%) -- 1000 mL
22.5 parts of 3% (2.1 + 20.4)
2.1 parts of 23.4%/20.4 parts of 0.9% = X mL/1000 mL
X = 102.9412 mL of 23.4%
X g/102.9412 mL = 23.4 g/100 mL
X = 24.088 g
mEq = (24088 mg x 1)/58.5 = 411.8 mEq
A patient is receiving 650 mL of 10% lipids. How many kcals is the patient receiving from the lipids?
(Answer must be numeric; no units or commas; round the final answer to the nearest whole number.) -
Precise Answer ✔✔1.1 kcal/mL x 650 mL = 715 kcal
