If a patient receives 4W for 100 sec and weighs 70 kg, how many J/kg would the patient receive?

To determine how many joules per kilogram (J/kg) the patient receives, you first need to calculate the total energy delivered in joules. The formula for energy is:

Energy (J) = Power (W) × Time (s)

In this scenario, the power is given as 4 watts (W) and the time is 100 seconds (s). Using the formula, you calculate:

Energy = 4 W × 100 s = 400 J

Next, to find out how many joules per kilogram the patient receives, you must divide the total energy by the patient's weight in kilograms. The patient weighs 70 kg, so the calculation becomes:

J/kg = Total Energy (J) / Weight (kg) = 400 J / 70 kg

This results in approximately:

J/kg = 5.71 J/kg

When rounded, this value can be represented as 5.7 J/kg. Therefore, the correct answer is based on this calculation, demonstrating that the energy administered in relation to the weight of the patient yields a specific energy dosage of 5.7 J/kg.