Question

It is assumed that glomerular hydrostatic pressure (GHP) is 75 mm of Hg, the osmotic blood pressure as 40 mm of Hg and the capsular pressure as 25 mm of Hg, then the effective filtration pressure (EFP) will be _________ mm of Hg.

• A. \(10\)
• B. \(15\)
• C. \(40\)
• D. \(75\)

Hint:

Filtration pressure equals the glomerular pressure minus the opposing osmotic and capsular pressures.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
Glomerular hydrostatic pressure pushes fluid out of the glomerulus. Blood colloidal osmotic pressure and capsular hydrostatic pressure oppose filtration.

Step 2: Formula
\(\text{EFP} = \text{GHP} - (\text{osmotic pressure} + \text{capsular pressure})\)

Step 3: Calculation
\(\text{EFP} = 75 - (40 + 25) = 75 - 65 = 10\) mm of Hg.

Final Answer:
The effective filtration pressure is 10 mm of Hg. \[ \boxed{\text{(A) }10} \]