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Test ID UR Bacterial Culture, Aerobic, Urine

Useful For

Diagnosis of urinary tract infections

 

Quantitative culture results may be helpful in discriminating contamination, colonization, and infection.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
COMM Identification Commercial Kit No No
RMALD Ident by MALDI-TOF mass spec No No
GID Bacteria Identification No No
ISAE Aerobe Ident by Sequencing No No
REFID Additional Identification Procedure No No
SALS Serologic Agglut Method 1 Ident No No
EC Serologic Agglut Method 2 Ident No No
SHIG Serologic Agglut Method 3 Ident No No
STAP Identification Staphylococcus No No
STRP Identification Streptococcus No No
BLA Beta Lactamase No No
HODGE Carbapenamase-Modified Hodge Test Yes, External; No Internal (HODGB bill only) No
KPNRP KPC and NDM PCR Yes, External; No Internal (KPND1 bill only) No
CARNP Carbapenemase-Carba NP Test Yes, External; No Internal (CARNB Bill Only) No

Testing Algorithm

When this test is ordered, the reflex tests may be performed and charged.

Method Name

Conventional Quantitative Culture Technique; Identification of Pathogens Greater Than or Equal to 10,000 cfu/mL

Reporting Name

Bacterial Culture, Aerobic, Urine

Specimen Type

Urine

Specimen must arrive within 24 hours of collection.

 

Collection Container/Tube: Clean, plastic urine collection container

Submission Container/Tube: Plastic, 10-mL urine tube (Supply T068)

Specimen Volume: 1 mL

Collection Instructions: Collect a random urine specimen.

Additional Information: Specimen source is required.

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 24 hours
  Ambient  2 hours

Clinical Information

Urinary tract infection (UTI) encompasses a broad range of clinical entities that vary in their clinical presentation, degree of tissue invasion, epidemiologic setting, and antibiotic therapy requirements. There are 4 major types of UTIs: urethritis, cystitis, acute urethral syndrome, and pyelonephritis. UTIs may also be classified as uncomplicated or complicated. Escherichia coli is the leading cause of uncomplicated community-acquired UTI. Risk factors that predispose one to complicated UTIs include: underlying diseases that are associated with kidney infection (eg, diabetes), kidney stones, structural or functional urinary tract abnormalities, and indwelling urinary catheters. Another classification of UTIs is as upper UTI (related to the kidney, renal pelvis, or ureter) or lower UTI (urinary bladder and urethra). The classic symptoms of upper UTI are fever (often with chills) and flank pain; frequent painful urination, urgency, and dysuria are more often associated with lower UTI.

Reference Values

No growth

Identification of probable pathogens with colony count ranges

Cautions

Although urine is normally sterile, contamination by organisms normally present in the urethra or on periurethral surfaces can allow a proliferation of these organisms yielding misleading urine culture results.

 

Urine held at ambient temperature for >30 minutes supports the growth of both pathogens and contaminants, leading to potentially inaccurate colony counts.

 

Urine obtained from catheter bags at the bedside and Foley catheter tips are unacceptable for culture.

Day(s) Performed

Monday through Sunday; Continuously

Report Available

2 days

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test uses a standard method. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

87086-Bacterial Culture, Aerobic, Urine

87077-Identification Commercial Kit (if appropriate)

87077-Ident by MALDI-TOF mass spec (if appropriate)

87077-Bacteria Identification (if appropriate)

87153-Aerobe Ident by Sequencing (if appropriate)

87077-Additional Identification Procedure (if appropriate)

87147 x 5-Serologic Agglut Method 1 Ident (if appropriate)

87147-Serologic Agglut Method 2 Ident (if appropriate)

87147 x 5-Serologic Agglut Method 3 Ident (if appropriate)

87077-Identification Staphylococcus (if appropriate)

87077-Identification Streptococcus (if appropriate)

87185-Beta Lactamase (if appropriate)

87798 x 2-KPC and NDM PCR (if appropriate)

87185-Carbapenemase detection, Carba NP test (if appropriate)

87185-Carbapenemase Detection, Modified Hodge Test (if appropriate)

NY State Approved

Yes