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Test ID: LTE4    
Leukotriene E4, Urine

Specimen Type Describes the specimen type needed for testing

Urine

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

See Urine Preservatives in Special Instructions for multiple collections.

 

Submit only 1 of the following specimens:

 

Preferred: 24 hour urine collection

Container/Tube: Plastic, 6-mL tube (Supply T465)

Specimen Volume: 5 mL

Collection Instructions:

1. Collect urine for 24 hours.

2. No preservative.

Additional Information: 24-Hour volume is required.

 

Acceptable: Random collection

Container/Tube: Plastic, 6-mL tube (Supply T465)

Specimen Volume: 5 mL

Collection Instructions:

1. Collect a random urine specimen. 

2. No preservative.

 

Urine Preservative Collection Options

No preservative

Preferred

6N HCl

Yes

50% acetic acid

Yes

Na2CO3

Yes

Toluene

Yes

6N HNO3

Yes

Boric acid

Yes

Thymol

Yes

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

1 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Hemolysis

NA

Lipemia

NA

Icterus

NA

Other

NA

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
UrineRefrigerated (preferred)7 days
 Frozen 90 days
 Ambient 24 hours