February 2, 2025 • 2 mins
Dosage calculations can be stressful, but the D/H × Q formula simplifies medication math!
In this episode, we break down this essential formula, go through real-world examples, and provide NCLEX-style practice problems to help you ace your nursing exams.
Whether you're a nursing student, preparing for the NCLEX, or already in practice, mastering medication math is a must.
Learn how to solve tablet & liquid medication calculations
real NCLEX practice questions
Boost your confidence in clinical settings!
Listen now and take your pharmacology skills to the next level!
1️⃣ A doctor orders 400 mg of a drug. You have 200 mg tablets. How many tablets should you give?
2️⃣ A patient needs 150 mg of a liquid medication available as 50 mg per 5 mL. How many mL should be administered?
3️⃣ A physician prescribes 1,200 mg of a medication. You have 400 mg tablets. How many tablets are needed?
4️⃣ Your patient requires 60 mg of a drug in liquid form. The concentration is 30 mg per 2 mL. How much will you give?
5️⃣ The order is 500 mg of a medication. Available: 250 mg per 1 mL. How many mL should be administered?
6️⃣ A provider prescribes 2 g of a medication. The tablets available are 500 mg each. How many tablets are required?
7️⃣ A patient needs 90 mg of a medication. It is available in 30 mg per 1 mL. How many mL should you administer?
8️⃣ The order is for 75 mg of a medication, available as 25 mg per 5 mL. What is the correct dose?
9️⃣ A patient requires 300 mg of a drug available as 150 mg per 2 tablets. How many tablets should be given?
🔟 The provider orders 250 mg of a medication. Available: 125 mg per 1 mL. How many mL should you administer?
ANSWERS:
1️⃣ Answer: 2 tablets - (400 mg ÷ 200 mg) × 1 = 2. The ordered dose is double the available dose. 2️⃣ Answer: 15 mL - (150 mg ÷ 50 mg) × 5 = 15. Divide the ordered dose by the available dose per unit and multiply by quantity. 3️⃣ Answer: 3 tablets - (1200 mg ÷ 400 mg) × 1 = 3. 4️⃣ Answer: 4 mL - (60 mg ÷ 30 mg) × 2 = 4. 5️⃣ Answer: 2 mL - (500 mg ÷ 250 mg) × 1 = 2. 6️⃣ Answer: 4 tablets - (2000 mg ÷ 500 mg) × 1 = 4. 7️⃣ Answer: 3 mL - (90 mg ÷ 30 mg) × 1 = 3. 8️⃣ Answer: 15 mL - (75 mg ÷ 25 mg) × 5 = 15. 9️⃣ Answer: 4 tablets - (300 mg ÷ 150 mg) × 2 = 4. 🔟 Answer: 2 mL - (250 mg ÷ 125 mg) × 1 = 2.
In this episode, we break down this essential formula, go through real-world examples, and provide NCLEX-style practice problems to help you ace your nursing exams.
Whether you're a nursing student, preparing for the NCLEX, or already in practice, mastering medication math is a must.
Learn how to solve tablet & liquid medication calculations
real NCLEX practice questions
Boost your confidence in clinical settings!
Listen now and take your pharmacology skills to the next level!
1️⃣ A doctor orders 400 mg of a drug. You have 200 mg tablets. How many tablets should you give?
2️⃣ A patient needs 150 mg of a liquid medication available as 50 mg per 5 mL. How many mL should be administered?
3️⃣ A physician prescribes 1,200 mg of a medication. You have 400 mg tablets. How many tablets are needed?
4️⃣ Your patient requires 60 mg of a drug in liquid form. The concentration is 30 mg per 2 mL. How much will you give?
5️⃣ The order is 500 mg of a medication. Available: 250 mg per 1 mL. How many mL should be administered?
6️⃣ A provider prescribes 2 g of a medication. The tablets available are 500 mg each. How many tablets are required?
7️⃣ A patient needs 90 mg of a medication. It is available in 30 mg per 1 mL. How many mL should you administer?
8️⃣ The order is for 75 mg of a medication, available as 25 mg per 5 mL. What is the correct dose?
9️⃣ A patient requires 300 mg of a drug available as 150 mg per 2 tablets. How many tablets should be given?
🔟 The provider orders 250 mg of a medication. Available: 125 mg per 1 mL. How many mL should you administer?
ANSWERS:
1️⃣ Answer: 2 tablets - (400 mg ÷ 200 mg) × 1 = 2. The ordered dose is double the available dose. 2️⃣ Answer: 15 mL - (150 mg ÷ 50 mg) × 5 = 15. Divide the ordered dose by the available dose per unit and multiply by quantity. 3️⃣ Answer: 3 tablets - (1200 mg ÷ 400 mg) × 1 = 3. 4️⃣ Answer: 4 mL - (60 mg ÷ 30 mg) × 2 = 4. 5️⃣ Answer: 2 mL - (500 mg ÷ 250 mg) × 1 = 2. 6️⃣ Answer: 4 tablets - (2000 mg ÷ 500 mg) × 1 = 4. 7️⃣ Answer: 3 mL - (90 mg ÷ 30 mg) × 1 = 3. 8️⃣ Answer: 15 mL - (75 mg ÷ 25 mg) × 5 = 15. 9️⃣ Answer: 4 tablets - (300 mg ÷ 150 mg) × 2 = 4. 🔟 Answer: 2 mL - (250 mg ÷ 125 mg) × 1 = 2.
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