Final answer:
The total blood volume for a 3 kg infant is estimated to be 240 mL, calculated by taking 8% of the infant's body weight.
Step-by-step explanation:
The total blood volume for an infant weighing 3 kg is approximately 240 mL. This is calculated by acknowledging that blood constitutes about 8% of body weight in infants. Using the provided weight of the infant (3 kg), we multiply the weight by this percentage to calculate the estimated blood volume. . First, we need to convert the infant's weight from pounds to kilograms. 6.6 lbs is approximately 3 kg.
Then, we can calculate the blood volume by multiplying the weight by 8%. 3 kg x 8% = 0.24 kg. Finally, we can convert the blood volume from kilograms to liters, using the rule that 1 kg of body weight is approximately equal to 1 L of blood volume. So, the total blood volume for the infant is 0.24 L. Determine the infant's weight in kilograms: 3 kg Calculate the total blood volume using the approximation that an infant's blood volume is about 8% of their body weight.