BSN 215 HESI Dosage Calculation Exam

BSN 215 HESI Dosage Calculation Exam

Format: Multiple Choice
Total Questions: 50 (Simulated from a 200-question bank)
Instructions: Select the best answer. Round to the nearest tenth unless otherwise
specified.




Category 1: Basic Conversions & Ratios

1. A physician orders 0.25 grams of a medication. The pharmacy sends 500 mg
tablets. How many tablets will the nurse administer?

• A) 0.5 tablet
• B) 1 tablet
• C) 0.25 tablet
• D) 2 tablets

Correct Answer: A) 0.5 tablet
Rationale: Convert grams to mg: 0.25 g = 250 mg. Desired (250 mg) / Have (500 mg) =
0.5 tablets.

2. The order reads: "Amoxicillin 1.5 g PO BID." Available is 500 mg capsules. How
many capsules per dose?

• A) 1 capsule
• B) 2 capsules
• C) 3 capsules
• D) 4 capsules

,Correct Answer: C) 3 capsules
Rationale: 1.5 g = 1500 mg. 1500 mg / 500 mg = 3 capsules.

3. Convert 4,500 mcg to mg.

• A) 0.45 mg
• B) 4.5 mg
• C) 45 mg
• D) 450 mg

Correct Answer: B) 4.5 mg
Rationale: Divide by 1000: = 4.5 mg.

4. The patient drank 8 oz of water. How many mL did the patient drink?

• A) 120 mL
• B) 180 mL
• C) 240 mL
• D) 300 mL

Correct Answer: C) 240 mL
Rationale: 1 oz = 30 mL. 8 oz * 30 = 240 mL.

5. Administer 0.6 L of IV fluid. How many mL is this?

• A) 60 mL
• B) 600 mL
• C) 6,000 mL
• D) 60,000 mL

Correct Answer: B) 600 mL
Rationale: 1 L = 1000 mL. 0.6 * 1000 = 600 mL.

, Category 2: Oral Medications (Tablets/Liquids)

6. Order: Digoxin 0.125 mg PO daily. Available: Digoxin 0.25 mg tablets. How
many tablets?

• A) 0.5 tab
• B) 1 tab
• C) 1.5 tabs
• D) 2 tabs

Correct Answer: A) 0.5 tab
Rationale: Desired (0.125) / Have (0.25) = 0.5 tabs.

7. Order: Heparin 3,000 units SQ. Available: 5,000 units/mL. How many mL?

• A) 0.4 mL
• B) 0.6 mL
• C) 1.5 mL
• D) 2 mL

Correct Answer: B) 0.6 mL
Rationale: = 0.6 mL.

8. Order: Morphine sulfate 4 mg IV push. Available: 10 mg/2 mL. How many mL?

• A) 0.4 mL
• B) 0.8 mL
• C) 1.2 mL
• D) 2 mL

Correct Answer: B) 0.8 mL
Rationale: (4 mg / 10 mg) * 2 mL = 0.8 mL.