Inpatient and Outpatient Orderable

Random Urine, Leukotriene E4

Synonyms

CYSTEINYL LEUKOTRIENE
LAB10873
LEUKOTRIENE E4, RANDOM UR
LTE4
LTE4RU

Cerner Name

Clinical Info

Evaluating patients suspected of having systemic mastocytosis

Identification of aspirin sensitivity in patient respiratory diagnoses

Specimen Sources

Bladder Kidney, Left Kidney, Right Ureter, Left Ureter, Right Urine, Catheter Urine, Clean Catch

Specimen Types

Urine

Specimen Volume

Container

Urine Cup

Collection Instructions

Container/Tube: Urine cup or non preserved Urine collection tube
Specimen 4 mL Random Urine ( 2 mL min)
Transport Temperature: Refrigerated
Collection Instructions:
1. Collect a random urine specimen.
2. Refrigerate specimen after collection and send specimen refrigerated or frozen; do not add any preservative.

Transport Instructions

Refrigerated

Specimen Stability

1 Day Room Temperature
7 Days Refrigerated
28 Days Frozen

Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Enzymatic Colorimetric Assay

Days Performed

TAT: 3-7 Days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT

82542
82570
LOINC Code: 33343-5

PDM

1959720

Only Orderable at Locations:

Orderable Everywhere

Results

Component Name	Base Name	Common Name	External Name
LEUKOTRIENE E4, RANDOM UR	LEUKTRUR	LEUKOTRIENE E4, RANDOM UR	Leukotriene E4, Random Ur
CREATININE RANDOM URINE	CREATUR	CREATININE RANDOM URINE	Creatinine Random Urine

Result Interpretation

?104 pg/mg creatinine

Forms

LAB10873

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