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Lab Test Dictionary

Leukotriene E4, Urine (LTE4)

Methodology

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


Synonyms

Cysteinyl Leukotriene; Mastocytosis; Systemic Mast Cell Activation; Mast Cell Activation Syndrome; LTE4

Specimen Type

Urine

Performing Lab

Mayo Medical Lab


Epic ID

Other Reference Test

Lab Test Days

Tuesday and Friday; 11 A.M.

Standard TAT

4-8 Days


Collection Information

Specimen Required

1-4 mL 24 Hour or Random Urine

Container Type

Sterile Container

Collection Instructions

No preservative.


Processing Information - Lab Use Only

Transport Temperature

Refrigerate-OK/Frozen-OK

Specimen Stability

Room Temp: 24 Hours; Refrigerated: 7 Days (Preferred); Frozen: 30 Days

Test Volume Required

4 mL 24 Hour or Random Urine

Minimum Test Volume

4 mL 24 Hour or Random Urine

Processing Instructions

Indicate 24 hour volume in comments and on specimen. Order in Mayolink and send with Mayo courier Monday-Friday.


CPT Codes

82542


Revised

10-09-20

Initials

SL