USMLE Step 1 quiz

R3BKC

12345

Achievable

United States Medical Licensing Examination (USMLE) - Step 1

R3BKC-12345

What is the 60-40-20 rule?

(a)
60% body weight is water, 40% is ICF and 20% is ECF
(b)
60% total body water is ICF, 40% is ECF and 20% is plasma
(c)
60% of body weight is bone density, 40% is interstitial fluid and 20% is water

60-40-20 rule indicates that 60% of body weight is water, 40% is ICF and 20% is ECF. ECF is composed of 3/4 th interstitial fluid and 1/4 th plasma. Body water is comparatively more in leaner persons and decreases as the adipose tissue increases.

What is the 60-40-20 rule?

Select the answer

60% body weight is water, 40% is ICF and 20% is ECF

60% total body water is ICF, 40% is ECF and 20% is plasma

60% of body weight is bone density, 40% is interstitial fluid and 20% is water