Blood, urine (T220) [Back]
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| RISK ASSESSMENT VALUE: |
The measurement of urine blood(hemoglobin) is indicative of RBCs in the urine. A high number of RBCs in the urine may indicate infectious disease, tumors, nephritis, systemic disease or traumatic injury. Specimens positive for blood are confirmed by digital imaging.
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| NORMAL RESULTS: |
Negative
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| ABNORMAL RESULTS: |
RBCs in the urine indicate bleeding within the genitourinary tract and may result from infection, obstruction, inflammation, trauma, tumors, glomerulonephritis, renal hypertension, lupus nephritis, renal tuberculosis, renal vein thrombosis, hydronephrosis, pyelonephrosis, scurvy, malaria, parasitic infection of the bladder, subacute bacteria endocarditis, polyarteritis nodosa and hemorrhagic disorders.
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| ADDITIONAL TESTS: |
Digital imaging.
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| SAMPLE NEEDED: |
Random urine specimen.
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| SAMPLE STABILITY: |
Seven days at room temperature; indefinitely when frozen.
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| METHOD & INSTRUMENT: |
Chemical detection of blood based on the strong pseudoperoxidase action of hemoglobin in erythrocytes; Hitachi Modular.
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| INTERFERING FACTORS: |
Menstrual contamination.
Strong oxidizing detergents in the container.
Bacterial enzymes.
Ascorbic acid > 100 mg/dL or exposure to light may decrease Hb values.
pH <4.0 may cause a false increase in Hb values.
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| PURPOSE: |
Screen for renal or urinary tract disease.
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| PROFILE INCLUDES: |
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| RISK RANGE & UNITS: |
Negative
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