Question

question 97 (0.5 points)
calculate the net filtration pressure in the kidney:
glomerular capillary hydrostatic pressure= 60 mmhg
glomerular capillary oncotic pressure= 10 mmhg
bowmans capsule hydrostatic pressure= 20 mmhg
bowmans capsule oncotic pressure= 0 mmhg
○ 50 mmhg
○ 30 mmhg
○ 90 mmhg
○ 20 mmhg

Explanation:

Step1: Recall the formula for net filtration pressure (NFP) in the kidney.

The formula for NFP is: \( NFP = (Glomerular\ capillary\ hydrostatic\ pressure + Bowman's\ capsule\ oncotic\ pressure) - (Glomerular\ capillary\ oncotic\ pressure + Bowman's\ capsule\ hydrostatic\ pressure) \)

Step2: Substitute the given values into the formula.

Given:

• Glomerular capillary hydrostatic pressure (\( P_{gc} \)) = 60 mmHg
• Glomerular capillary oncotic pressure (\( \pi_{gc} \)) = 10 mmHg
• Bowman's capsule hydrostatic pressure (\( P_{bc} \)) = 20 mmHg
• Bowman's capsule oncotic pressure (\( \pi_{bc} \)) = 0 mmHg

Substituting into the formula:
\( NFP = (P_{gc} + \pi_{bc}) - (\pi_{gc} + P_{bc}) \)
\( NFP = (60 + 0) - (10 + 20) \)

Step3: Perform the arithmetic operations.

First, calculate the values inside the parentheses:
\( 60 + 0 = 60 \)
\( 10 + 20 = 30 \)

Then, subtract:
\( NFP = 60 - 30 = 30 \) mmHg

Answer:

30 mmHg (corresponding to the option "30 mmHg")