Causes of this nfp...BCOP, GBHP, CFHP?

Question

Glomerular Blood Hydrostatic Pressure =42

Blood colloid osmotic pressure=27

Capsular filtrate hydrostatic Pressure= 15

what are some causes of this? all help is appreciated, greatly.

Answer 1

You are describing the various pressures acting at the glomerulus, the net results of which is the Net Filtration Pressure (NFP).

http://findarticles.com/p/articles/mi_m0...

In the big picture, Net Filtration Pressure determines the Glomerular Filtration Rate (GFR), which is the most important measure of kidney function.

To answer your questions specifically:

1. Normal GBHP is around 40-60 mmHg, so 42 is in the normal range.

2. Normal BCOP is around 18 mmHg, so 27 represents a higher-than-normal osmotic pressure, possibly caused by having too much proteins (or other osmotically active substances like x-ray dye) in the blood.

3. Normal CFHP (sometimes known as Bowman's space hydrostatic pressure) is around 10 mmHg, so 15 is also a bit high, possibly due to blockage of urine flow, such as a kidney stone or an enlarged prostate.

Hope this helps.