Sweat Electrolytes (Sweat)

Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

SWET / RSWT (referred)

Test Code (Numeric Code)

0464

Laboratory Handling

Phlebotomy

Contact the laboratory to make an appointment for your patient - 09-3074949 ext 22020

Laboratory

LabPLUS Trace Metals

Sample Stability

International recommendations suggest Macroduct samples are stable for 72 hours after collection if stored at 4°C.

Synonyms

Sweat Test, sweat chloride, cystic fibrosis

Turnaround Time

1 week

Analysed every Thursday

Specimen Type

  • Sweat

Specimen Requirements

Tube/Container Type:

Preferred
  • Please refer to Additional Information below
Preferred Sample Volume (ml)

0.085

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • Please refer to Additional Information below
Acceptable
  • Please refer to Additional Information below

Pre-testing Requirements

As per instructions issued when an appointment is made

Additional Specimen Information

Sweat analysis is normally performed on a Thursday. Sweat guidelines recommend samples should be analysed within 72 hours of collection. Therefore when collection occurs outside of Auckland, there may be a narrow window to collect the sample and send it in time for analysis.

Last updated: 31/08/2026