If clearance of a drug equals the CFR, it implies that
Clearance = GFR, If there is no secretion or reabsorption in renal tubules.
Clearance > GFR, there is net tubular secretion.
Clearance < GFR, there is net tubular reabsoption.
Drug is reabsorbed in renal tubules
Drug is secreted into renal tubules
Drug is neither secreted or reabsorbed in renal tubules
None of the above