NFP?

(Pgc-πgc-Pbc)

OR

(Pgc-πgc)- (Pbc-πbc)

GFR=

Kf * (Pgc-Pbc-πgc)

Excretion rate?

Ex= Ux x V

V= volume/time= urine flow rate

Ux= urine concentration

aka rate of excretion in PSW

Excretion = ?

Excretion= Filtration- Reabsorption +Secretion

Clearance equation?

Clearance= (Ux/Px) X V

Ux= urine concentration

Px= plasma concentration

V= urine flow rate vol/time

Cinulin = ?

GFR

Ccr=?

GFR (approximate)

Cpah= ?

RPF

RPF= ?

Normal?

(Upah/Ppah) xV

Normal= 600mL/min

How do you find filtration fraction?

GFR/ RPF

tells us how much filtered plasma ends up in nephron

How do you find renal blood flow?

RBF= RPF/ 1- HCT

Filtered load (Fx) =

GFR x P_{x}

this is also called rate filtered in PSW!!!

Fractional excretion?

Ex/Fx

Ex= excretion rate

Fx= filtered load

Normal GFR?

100-125 mL/min

What factors favor filtration?

HPc

πbs

What factors oppose filtration?

πc

HPbs

In net filtration, what is relationship of GFR to clearance?

GFR = clearance

In net reabsorption, what is relationship between GFR and C?

GFR > clearnace

In net secretion, what is relationship between GFR and Clearance?

GFR < C

What is equation for Net Acid Excretion?

NAE= TA= + NH4- HCO3

Equation for anion gap?

AG= Na- (Cl +HCO3)

What is a normal AG?

8-12

If AG is normal and acidotic you have what?

Base loss

If AG is high and acidotic, you have what?

Acid gain

What is fractional reabsorption equation?

Rx/ Fx

What does Excretion equal at Tmax?

0

What is the range of specific gravity your body can produce?

1.003= 100 mOsm

1.010= 300 mOsM

1.032= 1200 mOsM

from psw #3