Test Name

Bilirubin,
Urinalysis

Test Code

3140

Unit

mg/dL

Station

Urinalysis

Synonym Name/Abbreviation

Bile, urine

CPT Code

81003

Performing Facility

American Medical Labs, Herzliya
Pituah

Analyzer

Roche Miditron-M

Test Method

Combur-10 Urine Stick ( Reflectance photometer;
Semi-quantitative)

AML Preferred Tube

Routine urinalysis leakproof tube or container, BD urine
transport tube, or sterile urine cup.

Storage Instructions

Examination of urine with test strips must be performed
within 2 hours of collection.
Transport refrigerated up to 24 h. Protect from light. Do not add
preservatives.

Min. Volume

10 mL random urine

Turn-Around-Time

One day.

Intended Use

Urine bilirubin positive implies elevated serum bilirubin.
Detect the presence of bilirubin (direct) in urine; screen for liver
disease: hepatitis, cirrhosis, toxic liver cells damage, Dubin-Johnson,
Rotor’s syndrome, cholestasis, intra or extra-hepatic
obstructions.

Limitations

Large amounts of ascorbic acid may lower sensitivity of this
test. Drugs may interfere with the test giving false-positive
results.

Patient Preparation

A voided specimen is usually acceptable. If specimen is
likely to be contaminated, a clean catch midstream specimen is
desirable.

Reasons for Rejection

Specimen not protected from light; specimen collected more
than 2h before or not refrigerated.

Adult Reference Ranges

Negative (<0.2
mg/dL)