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Test Code SWCL Sweat Chloride Test

Additional Codes

Epic EAP: LAB1726

Epic Description: SWEAT CHLORIDE

Synonym

Sweat Test

Sweat Chloride by Chloridometry

Specimen Type

Sweat

Specimen Required

 

 

  Collection Container Preferred Volume Minimum Volume
Preferred

Sweat Collection Device

 15 uL 15 uL

 

Patient Preparation

To increase the likelihood of collecting an adequate sweat specimen, sweat chloride testing can be evaluated in asymptomatic newborns with a positive newborn screen result when the infant is at least two weeks of age and weighs >2kg. In symptomatic newborns (e.g. those with meconium ileus), sweat chloride can be evaluated as early as 48 hours after birth if an adequate sweat volume can be collected, although the likelihood of an inconclusive result may be greater at this age.

Instructions for Collection and Transport

This test must be scheduled with laboratory 24 hours in advance. After scheduling an appointment with the lab for an OUTPATIENT, the test should be ordered in EPIC system. The patient should then present at the Laboratory Registration check-in desk at the prescheduled time. This test is only performed at Ochsner Pediatrics and Ochsner LSU Health Shreveport.

COLLECTION LIMITATIONS: Outpatients must report to and remain at the laboratory for the duration of testing – approximately one hour. Appointments are available Wednesdays 9:00am – 1:00pm . This test is collected by laboratory personnel only.

Aliquot Requirements

Sweat

Optimum 100 mg

Minimum 100 mg

Performing Lab

Ochsner Health Center - Pediatrics & Ochsner LSU Health Shreveport

Assay Frequency

OHC - PEDS LAB

Wednesdays 9:00am - 2:00pm

Routine Turnaround Time

4 hours

CPT Code Information

89230

82438