Medication Dosage Information
The previous dose of medication in milliliters depends on the specific medication being referenced, as different medications have different concentration formulations and dosing requirements. 1
Without knowing which specific medication you're referring to, I cannot provide a precise previous dose in milliliters. However, I can outline how medication doses are typically converted from weight-based dosing (mg/kg) to volume (mL) for common emergency and pediatric medications.
Dose Conversion Principles
For liquid medications, the conversion from mg to mL depends on the concentration of the medication:
- For medications with concentration 1 mg/mL: 1 mg = 1 mL
- For medications with different concentrations, use this formula:
- Volume (mL) = Dose (mg) ÷ Concentration (mg/mL)
Common Medication Concentrations
Epinephrine
- Available in two concentrations:
- 1:1000 solution (1 mg/mL)
- 1:10,000 solution (0.1 mg/mL)
- Conversion examples:
- 0.01 mg/kg = 0.1 mL/kg of 1:10,000 solution
- 0.1 mg/kg = 0.1 mL/kg of 1:1000 solution 1
Other Common Emergency Medications
- Lorazepam: Available as 2 mg/mL or 4 mg/mL
- Diazepam: Available as 5 mg/mL
- Phenytoin: Available as 50 mg/mL
- Valproate: Available as 100 mg/mL 2
Pediatric Dosing Considerations
For pediatric patients, medication doses are typically weight-based and then converted to volume:
- Calculate the dose in mg based on the patient's weight (kg)
- Convert the mg dose to mL based on the medication's concentration
- Ensure the dose does not exceed the maximum recommended dose 1
Important Safety Considerations
- Always verify the concentration of the medication before calculating the volume
- Double-check calculations, especially for high-alert medications
- For medications with multiple available concentrations (like epinephrine), ensure you're using the correct concentration for the intended route of administration
- Consider using standardized dosing charts or electronic calculators to minimize calculation errors 1
Without knowing the specific medication, concentration, patient's weight, and indication, I cannot provide the exact previous dose in milliliters. If you can provide these details, I would be happy to help calculate the appropriate dose.