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Laboratory Test Directory

Chloride, Sweat


Name Method Department Units
Chloride, Sweat Coulometry
Core Lab, Chemistry, Routine mmol/L

Specimen Requirements


Container Type Container Size Specimen Volume

As appropriate


Room temperature - 24 hour(s)
Refrigerated - 3 day(s)

Specimen Preparation

  • Collected by laboratory staff

Reasons for Rejection

  • Contamination
  • Diluted specimen


Call the most convenient Close to Home Center or Laboratory Service Center to schedule the collection. If the Outpatient Lab on main campus is most convenient, the collections can be scheduled through Central Scheduling at 614-722-6200. Patients should be well hydrated and kept warm during sweat collection. The patient cannot leave the lab/facility during the sweat chloride collection. Child should be at least 48 hours old, as erroneous results can occur if newborn is less than 48 hours old.

CPT Code

  • 89230
  • 82438