*Please Type up your respone!* 1. what does low serum complement C3/C4/CH50 indication in a labtest? 2. Why would kidney size decrease with renal arterystenosis? 3. why would we see increase Na and Cl in Diabetes Inspidus? Whywould blood venous be alkaline? 4. why would a serum osmalilty be high be a urine osmalilty indiabetes inspidus?? 5. What does the water deprivation test , test for? and how canwe interpret its results? . . .