Quiz 11: Drug Calculations

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?

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? b. How many mg will the patient receive per day?

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? b. How many tablet(s) will the patient receive daily after the first day?

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

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

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?

Order: Norvir 600 mg,PO,b.i.d. Available: Norvir 80 mg/1 mL a.How many milliliters (mL)will the patient receive per dose? b.How many milligrams (mg)will the patient receive per day?

Order: methenamine mandelate 500 mg,PO,q.i.d. Available: methenamine mandelate 500 mg tablet How many tablet(s)will be given per dose?

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

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? b.How many tablets will the patient receive per dose when ordered 100 mg in two divided doses? c.How many tablets will the patient receive per dose when increased to 200 mg,b.i.d.?

Order: amoxicillin (Amoxil)250 mg,PO,q8h Available: 250 mg per 5 mL a. How many mL will the patient receive per dose? b. How many mg will the patient receive per day? c. How many mL will the patient receive per day?

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

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?

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

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

Order: 1000 mL of lactated Ringer's (LR)solution to be administered in 6 hours Available: 1 L LR Macrodrip set labeled 10 gtt/mL a. How many mL of LR will be infused in 1 hour? b. How many drops per minute (gtt/min) will the patient receive?

Order: aminocaproic acid 4 g in 250 mL D₅W to infuse in 1 hour Set: secondary set labeled 15 gtt/min Available: aminocaproic acid 250 mg/1 mL a. How many mL of aminocaproic acid will be mixed in 250 mL of D₅W? b. How many gtt/min will the patient receive?

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?

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

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?

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

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?