Deck 11: Drug Calculations

Question 1

Order: loxapine (Loxitane) 75 mg, IM, daily Available: loxapine (Loxitane) 50 mg/1 mL
How many milliliters (mL) will the patient receive per day? __________ mL

Answer 1

1.5

Question 2

Order: aminocaproic acid 4 g in 250 mL D₅W to infuse over 1 hour Available: aminocaproic acid 250 mg/1 mL
How many mL of aminocaproic acid will be mixed in 250 mL of D₅W? ___________ mL

Answer 2

16

Question 3

Order: methenamine hippurate 1000 mg, PO,
B)i.d. Available: methenamine hippurate 1000 mg tablet
How many tablet(s) will be given per dose? ___________ tablet

Answer 3

1

Question 4

Order: chlorpromazine (Thorazine) 12.5 mg, IM (deep), STAT Available: chlorpromazine (Thorazine) 25 mg/1 mL
How many mL will be given? ___________ mL

Question 5

Order: trihexyphenidyl hydrochloride (Artane) 6 mg, PO, twice daily Available: trihexyphenidyl hydrochloride (Artane) 2 mg tablets
How many tablet(s) will the patient receive on a daily basis? ______________

Question 6

Order: prochlorperazine (Compazine) 7.5 mg, IM (deep), q.i.d., PRN Available: prochlorperazine (Compazine) 12.5 mg/1 mL
How many mL will be given per dose? _____________ mL

Question 7

Order: Mycostatin U 500,000, PO, q.i.d. (swish and swallow) Available: Mycostatin 100,000 units per mL
How many mL will be given per dose? _________ mL

Question 8

Order: doxycycline hyclate 100 mg, PO, first day q12h; then 100 mg, PO, daily Available: doxycycline hyclate 100 mg tablets

A) How many tablet(s) will the patient receive the first day? __________ tablets
B) How many tablet(s) will the patient receive daily after the first day? _________ tablet

Question 9

Order: amoxicillin (Amoxil) 250 mg, PO, q8h Available: 250 mg per 5 mL

A) How many mL will the patient receive per dose? ________ mL
B) How many mg will the patient receive per day? ___________ mg
C) How many mL will the patient receive per day? ___________ mL

Question 10

Order: cefadroxil 0.4 g, PO, q12h Available: cefadroxil 250 mg/5 mL
How many mL will be given per dose? ____________ mL

Question 11

Order: Serzone (nefazodone hydrochloride), PO: Day 1, 200 mg in two divided doses; Day 8, 400 mg in two divided doses. Available: nefazodone hydrochloride 100 mg tablet

A) How many tablets will the patient receive on Day 1? ___________ tablets
B) How many tablets will the patient receive per dose when ordered 100 mg in two divided doses? ______________ tablet
B)i.d.? ____________ tablets
C) How many tablets will the patient receive per dose when increased to 200 mg,

Question 12

Order: digoxin (Lanoxin), PO, 62.5 mcg, daily Available: Lanoxin 0.125-mg tablets
How many mg will the patient receive per day? __________ mg

Question 13

Order: 1000 mL of lactated Ringer's (LR) solution to be administered over 6 hours Available: 1 L LR Macrodrip set labeled 10 gtt/mL

A) How many mL of LR will be infused in 1 hour? __________ mL
B) How many drops per minute (gtt/min) will the patient receive? __________ drops per minute

Question 14

Order: cefuroxime axetil (Ceftin) 200 mg, PO,
B)i.d. Available: Ceftin 250 mg/5 mL
How many mL will the patient receive per dose? ___________ mL

Question 15

Order: Norvir 600 mg, PO,

A) How many milliliters (mL) will the patient receive per dose? ___________ mL
B) How many milligrams (mg) will the patient receive per day? ___________ mg
B)i.d. Available: Norvir 80 mg/1 mL

Question 16

Order: erythromycin 350 mg, PO, q8h. Available: erythromycin estolate 250 mg/5 mL
How many mL will be given per dose? ____________ mL

Question 17

Order: trimethoprim-sulfamethoxazole (Bactrim) 160/800 mg, PO,
B)i.d. Available: Bactrim 80/400-mg tablets
How many tablets will be given per dose? ____________ tablets

Question 18

Order: allopurinol (Zyloprim) 150 mg, PO, q.i.d. Available: allopurinol (Zyloprim) 100 mg tablet, scored

A) How many tablet(s) will be given per dose? _____________ tablets
B) How many mg will the patient receive per day? ___________ mg

Question 19

Order: midazolam (Versed) 3 mg, IM, STAT Available: Versed 5 mg/1 mL
How many mL will be given? _____________ mL

Question 20

Order: Augmentin 500 mg, PO, q8h Available: amoxicillin-potassium clavulanate 250-125 mg tablet
How many tablet(s) will be given per dose? ___________ tablets

Question 21

Order: levetiracetam (Keppra), PO, 20 mg/kg/day, divided
B)i.d. Available: Keppra 100 mg/mL
Patient weight: 20 kg
How many mL will the patient receive per dose? __________ mL

Question 22

Order: amoxicillin (Amoxil) 500 mg, PO,
B)i.d. Available: Amoxil 400 mg/5 mL
How many mL will be given per dose? _________ mL