What is the approximate volume of blood loss in cc for a 100 kg patient experiencing 20% blood loss?

To determine the approximate volume of blood loss for a 100 kg patient experiencing 20% blood loss, we need to first calculate the total blood volume of the patient and then find out what 20% of that volume is.

The average blood volume in humans is roughly 7% of body weight. Thus, for a 100 kg patient, the total blood volume can be calculated as follows:

Total blood volume = Body weight (kg) × Blood volume percentage

= 100 kg × 0.07 (which is the average blood volume per kilogram)

= 7 kg of blood.

Since 1 kg of blood is approximately equivalent to 1000 cc, we can convert this weight to volume:

Total blood volume in cc = 7 kg × 1000 cc/kg = 7000 cc.

Now, to find 20% of this total blood volume:

20% of total blood volume = 0.20 × 7000 cc = 1400 cc.

Upon reviewing the available choices, the value closest to 1400 cc is 1500 cc. Hence, the answer is correctly identified as 1500 cc.