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Laboratory Test Reference Guide

Laboratory Information

Test Name

Sweat test


Chloride sweat
Sweat chloride

External Price (excl. GST)



Constituent Tests

Specimen Collection

Pre Testing Requirements

Bookings made with Paediatrics Outpatients, Waikato Hospital (Ext. 98622). Clinics are run monthly

Adult Specimen

Specialised collection procedure. Enquiries phone Ext. 98606.

Test Information



Test Availability


Laboratory Turnaround Time

3 day

Reference Interval

See attachment

Reference Interval Attachments

Uncertainty Of Measurement

Chloride 5%

Additional Information

Sweat tests can be performed after 2 weeks of age in infants greater than 2kg who are normally hydrated and without significant systemic illness. Testing should be delayed in those who have eczema affecting potential stimulation sites, as well as patients who are oedematous.

Minimum Volume

65 mg of sweat.

Electronic Information

Registration Code


HL7Mapping Code