Medical Math: Hosa Questions
With Complete Solutions
Professional Practice & Study Guide
Prepared for HOSA Medical Math Preparation
Format: Questions • Answers • Step-by-Step Solutions
TABLE OF CONTENTS
1. Cover Page
2. Table of Contents
3. Basic Mathematical Conversions — Questions 1–10
4. Medication Dosage Calculations — Questions 11–25
5. Oral and Liquid Medication Calculations — Questions 26–35
6. IV Flow Rate and Infusion Calculations — Questions 36–48
7. Weight-Based and Pediatric Calculations — Questions 49–60
8. Advanced Mixed Medical Math — Questions 61–70
NOTE: These are original HOSA-style practice questions designed for study and calculation
practice. They are not official or leaked HOSA competition questions.
,BASIC MATHEMATICAL CONVERSIONS
Question 1
Convert 2.5 grams (g) to milligrams (mg).
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Answer: C. 2,500 mg
Complete Solution:
1 g = 1,000 mg
2.5 g × 1,000 mg/g = 2,500 mg
Therefore, the correct answer is 2,500 mg.
Question 2
Convert 750 mg to grams.
A. 0.075 g
B. 0.75 g
C. 7.5 g
D. 75 g
Answer: B. 0.75 g
Complete Solution:
1,000 mg = 1 g
750 mg ÷ 1,000 = 0.75 g
Question 3
Convert 0.8 liters (L) to milliliters (mL).
A. 8 mL
B. 80 mL
C. 800 mL
D. 8,000 mL
Answer: C. 800 mL
Complete Solution:
1 L = 1,000 mL
, 0.8 × 1,000 = 800 mL
Question 4
Convert 450 mL to liters.
A. 0.045 L
B. 0.45 L
C. 4.5 L
D. 45 L
Answer: B. 0.45 L
Complete Solution:
450 mL ÷ 1,000 = 0.45 L
Question 5
Convert 2 teaspoons (tsp) to milliliters using 1 tsp = 5 mL.
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Answer: B. 10 mL
Complete Solution:
2 tsp × 5 mL/tsp = 10 mL
Question 6
Convert 30 mL to tablespoons using 1 tablespoon = 15 mL.
A. 1 tbsp
B. 2 tbsp
C. 3 tbsp
D. 4 tbsp
Answer: B. 2 tbsp
Complete Solution:
30 mL ÷ 15 mL/tbsp = 2 tbsp
Question 7
Convert 5 grains to milligrams using 1 grain ≈ 65 mg.
With Complete Solutions
Professional Practice & Study Guide
Prepared for HOSA Medical Math Preparation
Format: Questions • Answers • Step-by-Step Solutions
TABLE OF CONTENTS
1. Cover Page
2. Table of Contents
3. Basic Mathematical Conversions — Questions 1–10
4. Medication Dosage Calculations — Questions 11–25
5. Oral and Liquid Medication Calculations — Questions 26–35
6. IV Flow Rate and Infusion Calculations — Questions 36–48
7. Weight-Based and Pediatric Calculations — Questions 49–60
8. Advanced Mixed Medical Math — Questions 61–70
NOTE: These are original HOSA-style practice questions designed for study and calculation
practice. They are not official or leaked HOSA competition questions.
,BASIC MATHEMATICAL CONVERSIONS
Question 1
Convert 2.5 grams (g) to milligrams (mg).
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Answer: C. 2,500 mg
Complete Solution:
1 g = 1,000 mg
2.5 g × 1,000 mg/g = 2,500 mg
Therefore, the correct answer is 2,500 mg.
Question 2
Convert 750 mg to grams.
A. 0.075 g
B. 0.75 g
C. 7.5 g
D. 75 g
Answer: B. 0.75 g
Complete Solution:
1,000 mg = 1 g
750 mg ÷ 1,000 = 0.75 g
Question 3
Convert 0.8 liters (L) to milliliters (mL).
A. 8 mL
B. 80 mL
C. 800 mL
D. 8,000 mL
Answer: C. 800 mL
Complete Solution:
1 L = 1,000 mL
, 0.8 × 1,000 = 800 mL
Question 4
Convert 450 mL to liters.
A. 0.045 L
B. 0.45 L
C. 4.5 L
D. 45 L
Answer: B. 0.45 L
Complete Solution:
450 mL ÷ 1,000 = 0.45 L
Question 5
Convert 2 teaspoons (tsp) to milliliters using 1 tsp = 5 mL.
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Answer: B. 10 mL
Complete Solution:
2 tsp × 5 mL/tsp = 10 mL
Question 6
Convert 30 mL to tablespoons using 1 tablespoon = 15 mL.
A. 1 tbsp
B. 2 tbsp
C. 3 tbsp
D. 4 tbsp
Answer: B. 2 tbsp
Complete Solution:
30 mL ÷ 15 mL/tbsp = 2 tbsp
Question 7
Convert 5 grains to milligrams using 1 grain ≈ 65 mg.
