Final answer:
The net filtration pressure (NFP) is calculated as blood pressure minus the sum of colloid osmotic pressure and capsular fluid hydrostatic pressure. Given the values of +7 kPa for blood pressure, -3 kPa for colloid osmotic pressure, and -2 kPa for capsular fluid hydrostatic pressure, the NFP is +12 kPa.
Step-by-step explanation:
To calculate the filtration pressure in the glomerulus, we must consider the given values: the blood pressure in the glomerular capillary (+7 kPa), the colloid osmotic pressure (-3 kPa), and the capsular fluid hydrostatic pressure (-2 kPa). The net filtration pressure (NFP) is determined by the sum of these pressures, taking into account that osmotic pressures are typically in opposition to hydrostatic pressures.
Using the provided values and knowing that NFP is calculated as glomerular blood hydrostatic pressure minus the sum of capsular hydrostatic pressure and blood colloid osmotic pressure, we find:
NFP = Blood pressure - (Colloid osmotic pressure + Capsular fluid hydrostatic pressure)
NFP = +7 kPa - (-3 kPa + (-2 kPa))
NFP = +7 kPa - (-3 kPa - 2 kPa)
NFP = +7 kPa - (-5 kPa)
NFP = +7 kPa + 5 kPa
NFP = +12 kPa
Therefore, the filtration pressure would be 12 kPa, which is not explicitly listed in the given options (a. 1, b. 2, c. 3, d. 8). The correct answer may be a typo, or the quiz may contain an error.