Leukotriene E4, 24-Hour Urine
Order Name
Leukot E4 Ur
Test Number: None
Revision Date 10/25/2023
Test Number: None
Revision Date 10/25/2023
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Leukotriene E4, 24-Hour Urine
|
Liquid Chromatography/Tandem Mass Spectrometry |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 5 mL (2 mL) | Urine, 24-hour | 24 hour Urine Container | Frozen |
| Instructions | Order using New Test Misc: Use Labcorp test number 831775 Collection Instructions: 1. Start collection within a few hours of symptom onset and collect urine for 24 hours 2. No preservative preferred 3. Aliquot urine into a plastic vial and send frozen. Stability: Room Temperature: 24 hours; Refrigerated: 7 days; Frozen: 28 days |
|||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Monday, Thursday |
| Expected TAT | 4-11 days after test set-up |
| Clinical Use | Aiding in the evaluation of patients at-risk for mast cell activation syndrome (eg, systemic mastocytosis, IgE-mediated allergies, or aspirin-exacerbated respiratory disease) using 24-hour urine collections |
| Performing Labcorp Test Code | 831775 |
| Notes | Performing laboratory Mayo Medical Laboratories tc# TLTE4 |
| CPT Code(s) | 82542 |
| Lab Section | Reference Lab |