Renal

Question 1

Calculate Extraction Rate of a Substance…

Answer 1

(GFR) x (Plasma Conc. of Substance) - (Reabsorption Rate)

*Can use Inulin Clearance to estimate GFR

Question 2

Most common cause of kideny stones in Adult?

Answer 2

Calcium. Usually idiopathic. Pt will have HYPERcalciuria, but NORMOcalcemic.

Question 3

Calculate FF and GFR using lab= Creatanine (urine and plasma) and PAH (urine and plasma)

Answer 3

FF= GFR/RPF , Clearance (for GFR and RPF) = Urine/plasma x Urine Flow rate

Question 4

ACE inhibitors cause RENAL FAILURE how??

Answer 4

AT2 usually constricts the Efferent Arteriole, which maintains GFR.

Question 5

Quesiton about some with calcium renal stones. What help prevent caliculi ?

Answer 5

Citrate (which binds free Ca) and High fluid Intake