Dosage Calculations
Dosage Calculations
Dosage Conversions
- 1 mg = 1,000 mcg
- 1 L = 1,000 ml
- 5 ml = 1 tsp
- 15 ml = 1 tbsp
- 1 kg = 1,000 g
- 1 L = 1,000 ml
- 1 g = 1,000 mg
- 1 mL = 1 ice
- 3 tsp = 1 tbsp
- 30 ml = 1 oz
- 8 oz = 1 cup
- 1 kg = 2.205 lb
Dosage Calculation Formula
- The formula to calculate dosage is:
- D (desired dose)
- H (amount on hand)
- X (volume)
Example One
- Order: 037 mg po (per os, or by mouth)
- Available tablets labeled: 025 mg
- Desired dose (D): 0.375 mg
- Calculation:
- X (v) tab = D / H
- Substitute values:
- D = 0.375 mg
- H = 0.25 mg
- Solve for X:
- tablets
Conclusion: An order of 037 mg results in needing to administer 1.5 tablets, or 1 and 1/2 tablets.