BSN HESI 215 Dosage Calculation Exam V1 - Nightingale College 2026/2027 | Medication Mathematics & Safety

BSN HESI 215 Dosage Calculation Exam V1 -
Nightingale College 2026/2027 | Medication
Mathematics & Safety


1. Order: Amoxicillin 500 mg PO q8h.

Available: 250 mg/5 mL suspension.

How many mL per dose?

A. 5 mL

B. 10 mL

C. 15 mL

D. 20 mL

Verified Answer: B. 10 mL

Step-by-Step (Dimensional Analysis):

500 mg × (5 mL / 250 mg) = 2500 mL / 250 = 10 mL



2. A patient weighs 154 lb.

Order: Drug X 2 mg/kg IV once.

How many mg should be prepared?

A. 70 mg

,B. 140 mg

C. 200 mg

D. 308 mg

Verified Answer: B. 140 mg

Steps:

154 lb ÷ 2.2 lb/kg = 70 kg

70 kg × 2 mg/kg = 140 mg



3. Infuse 1 000 mL LR over 8 h.

Drop factor 15 gtt/mL.

What is the flow rate in gtt/min? (Round to nearest whole number.)

A. 25 gtt/min

B. 31 gtt/min

C. 45 gtt/min

D. 60 gtt/min

Verified Answer: B. 31 gtt/min

Steps:

(1 000 mL × 15 gtt/mL) ÷ (8 h × 60 min/h) = 15 000 ÷ 480 = 31.25 → 31 gtt/min



4. Order: Digoxin 0.25 mg PO daily.

, Available: 0.125 mg tablets.

How many tablets per dose?

A. ½ tab

B. 1 tab

C. 2 tabs

D. 2½ tabs

Verified Answer: C. 2 tabs

Steps:

0.25 mg × (1 tab / 0.125 mg) = 2 tabs



5. Order: Acetaminophen 650 mg PO q6h prn.

Available: 325 mg per caplet.

How many caplets?

A. 1

B. 1½

C. 2

D. 3

Verified Answer: C. 2 caplets

Steps: