Urinalysis (Waived)

CPT Code: 

81001 

Tests Included: 

Color, appearance, specific gravity, pH, protein, glucose, blood, ketones, leukocyte esterase, nitrite, bilirubin and urobilinogen 

Specimen: 

Urine 

Volume: 

10 mL 

Minimum Volume: 

2 mL

Container:  

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

Methodology: 

Reagent strip

Collection: 

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

Reference Range:  

 

Use: 

Detect abnormalities of urine; diagnose and manage renal diseases, urinary tract infection, urinary tract neoplasms, systemic diseases, and inflammatory or neoplastic diseases adjacent to the urinary tract.

Clinical Significance:   

 

Causes for Rejection:  

 Quantity not sufficient for analysis; improper labeling; tubes with boric acid or tartaric acid (eg, BD gray-top C&S tube); LabCorp red-top C&S tube; Boricon, Bortiex, or Boricult yellow-top C&S tubes; specimen not refrigerated or preserved; specimen more than 48 hours old if unpreserved/nonrefrigerated or more than 72 hours old for BD transport tubes; frozen specimens.

Limitations: 

Insufficient volume may limit the extent of procedures performed. Metabolites of Pyridium® may interfere with the dipstick reactions by producing color interference. High vitamin C intake may cause an underestimate of glucosuria, or a false-negative nitrite test. Survival of WBCs is decreased by low osmolality, alkalinity, and lack of refrigeration.