Type | Definitions |
Gross hematuria | - Blood in the urine visible to naked eye
- As little as 1 mL of blood/L of urine can cause color change
- Typically indicates a lower urinary tract source
|
Microscopic hematuria | - Blood only seen in urine sediment by microscopy
- Typically discovered incidentally on urinalysis
- > 3 RBCs/high power field (hpf) in urine sediment
|
Mimics of hematuria | - Menstruation
- Beet consumption
- Pigmenturia (eg, myoglobin)
- Medications
- Nitrofurantoin
- Phenytoin
- Pyridium
- Rifampin
|
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