Rastinehad et al classified the severity of hematuria based on its clinical features. The authors are from the Arthur Smith Institute for Urology (Lake Success, New York), University of Pittsburgh and Long Island Jewish Medical Center.
Parameters:
(1) frequency and duration of hematuria
(2) blood clots
(3) need for medical or surgical intervention to control
Frequency and Duration
Blood Clots
Need for Intervention
Severity
1 episode
none or small
none
mild
multiple episodes during 24 hour period
none to nonobstructing
none
moderate
> 24 hours
NA
NA
severe
NA
large with obstruction
NA
severe
NA
NA
catheter placement and/or cystoscopy
severe
where:
• Some classifications of bleeding severity include stability of hemoglobin and hematocrit. This is mentioned in Figure 1, with a stable hematocrit indicating mild hematuria.
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