The renal clearance of

A. True Inulin is freely filtered but not reabsorbed or secreted in the tubules; therefore the amount excreted in the urine equals the amount filtered at the glomerulus.

B. False Aldosterone increases Na+ and Cl- reabsorption and so reduces their clearance.

C. True At high plasma levels, the Tm for PAH is exceeded and PAH is not completely cleared in one passage through the kidney.

D. True About 60 compared with 120 ml/minute; half the filtered urea is passively reabsorbed.

E. True The amount filtered is the amount excreted.