Equations! Flashcards Preview

Physio Test 4 > Equations! > Flashcards

Flashcards in Equations! Deck (28)
Loading flashcards...
1

NFP?

(Pgc-πgc-Pbc)

OR

(Pgc-πgc)- (Pbc-πbc)

2

GFR=

Kf * (Pgc-Pbc-πgc)

3

Excretion rate?

Ex= Ux x V

V= volume/time= urine flow rate

Ux= urine concentration

aka rate of excretion in PSW

4

Excretion = ?

Excretion= Filtration- Reabsorption +Secretion

5

Clearance equation?

Clearance= (Ux/Px) X V

Ux= urine concentration

Px= plasma concentration

V= urine flow rate vol/time

6

Cinulin = ?

GFR

7

Ccr=? 

GFR (approximate)

8

Cpah= ?

RPF

9

RPF= ?

Normal?

(Upah/Ppah) xV

Normal= 600mL/min

10

How do you find filtration fraction?

GFR/ RPF

tells us how much filtered plasma ends up in nephron

11

How do you find renal blood flow?

RBF= RPF/ 1- HCT

12

Filtered load (Fx) =

GFR x Px

this is also called rate filtered in PSW!!!

13

Fractional excretion?

Ex/Fx

Ex= excretion rate

Fx= filtered load

14

Normal GFR?

100-125 mL/min

15

What factors favor filtration?

HPc

πbs

16

What factors oppose filtration?

πc

HPbs

17

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

GFR = clearance

18

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

GFR > clearnace

19

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

GFR < C

20

What is equation for Net Acid Excretion?

NAE= TA=  + NH4- HCO3

21

Equation for anion gap?

AG= Na- (Cl +HCO3)

22

What is a normal AG?

8-12

23

If AG is normal and acidotic you have what?

Base loss

24

If AG is high and acidotic, you have what?

Acid gain

25

What is fractional reabsorption equation?

Rx/ Fx

26

What does Excretion equal at Tmax?

0

 

27

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

28