A test used in the diagnosis of cystic fibrosis.
Tube
Small sealable containers provided in the Macroduct Advanced Supply kit
ID
29992
Availability
Weekdays
Additional Information
For babies less than 6 weeks old it may be more appropriate to request a blood spot IRT and DNA analysis as such babies may not sweat adequately. Sweat tests can be unreliable in acutely ill patients and will only be carried out on wards in exceptional circumstances.
Turn Around
2 days
Send to
Specialist Laboratory Medicine
Block 46
St James hospital
Beckett Street
Leeds
LS9 7TF
Contact
For further details please contact Leeds Pathology customer services: [email protected].
Collection Con
Minimum volume: 15 µL or mg for a 25 minute collection, or 18 µL or mg for a 30 minute collection.
Instructions for lab: Send to Block 46. Samples may be transported to the laboratory at room temperature if they are to be analysed within 24 hours of being taken. If this is not possible, they may be stored at 4°C and analysed within 72 hours.
Please discuss with Biochemical Genetics lab prior to rejecting any samples.
Frequency
As required
Sample REQ
Sweat. Sweat tests are carried out at the CF Unit based at the LGI. Appointments can be made via the CF unit reception (0113 3927125).
Ref. Range Notes
<6 months: Normal <30, Equivocal 30-60, Abnormal >60.
>6 months: Normal <40, Equivocal 40-60, Abnormal >60.
Units
mmol/L