Patent ID: 8663128

Claim:
A diagnostic method comprising: connecting a catheter of a catheterized patient to a low flow metering device, wherein said low flow metering device incorporates a drop generator and a droplet counter, continuously monitoring urine output and urine flow rates of said catheterized patient by measuring real time minute fluctations in renal flow and renal output by measuring drops of urine by said drop generator and droplet counter; transmitting said real time minute fluctations in renal flow and renal output to means which calculate a change of urine output per minute units to correlate with at least one of renal perfusion, renal function, fluid status, polyuria, oleguria, hypoperfusion, hemorrhage shock and GFR; and graphically displaying through a display said minute fluctations in renal flow and renal output, wherein calculating said change of urine output per minute units comprises calculating a slope.