Dear Ladies and Gentlemen,

As you know, routienly performed dipstick urinalyses may allow to grade cells in urine as follows

a) "Negative"

b) "Trace"

c) "Small"

d) Moderate, and

e) "Large, according to cells/ml of unspun urine.

Could anyone give an advice how should one grade hematuria as above, based on the results of the microscopy of the urine sediment?

I suppose that "negative" is 0 cell/ml, and maybe "trace" is for the RBC up to 1000 cells/ml. What about other levels?

Lack of the unification is really annoying.

I have found some literature concerning this issue, but it is for cells/hpf and not about cells/ml.

I've even found a formula of conversion cells/hpf to cells/ml, but it doesn't work for high counts of the RBCs.

Thank you in advance.