Question

The renal clearance of 

A. Bicarbonate is similar to that of glucose. 

B. PAH is nearer 600 than 1200 ml/minute in the average adult. 

C. Creatinine provides an estimate of renal plasma flow. 

D. Phosphate is decreased by parathormone. 

E. Protein is normally zero.

Answer 1

A. True Both are usually totally reabsorbed so their renal clearance is about zero. 

B. True PAH clearance is a measure of renal plasma flow, not renal blood flow. 

C. False It provides an estimate of the glomerular filtration rate since the amount filtered is close to the amount excreted. 

D. False Phosphate clearance is increased by parathormone and lowers the blood phosphate level. 

E. True Small amounts of protein are filtered but reabsorbed.