What is the formula to calculate the dosage in mg based on the patient's weight in kg?

The correct formula for calculating the dosage in milligrams based on a patient's weight in kilograms involves multiplying the weight by the dosage per kilogram. This approach ensures that the medication administered is proportionate to the patient's body weight, making it safe and effective.

In practical terms, when you know the dosage required per kilogram of the patient's weight, you can easily determine the total dosage by using the formula:

Dosage (mg) = Weight (kg) × Dosage per kg (mg/kg).

This calculation is crucial in clinical settings, as it helps in personalizing medication dosages for individual patients, especially in pediatrics and critical care, where accurate dosing is vital for efficacy and patient safety.

Other formulas provided do not accurately reflect the necessary calculation for determining the appropriate dosage based on weight. They either involve incorrect mathematical operations or use inappropriate units that would not yield the correct dosage in milligrams.