![serum gel](https://www.leedsth.nhs.uk/wp-content/uploads/2023/05/01-SE-Serum-Gel.gif)
Autoantibodies to muscle specific tyrosine kinase (MuSK).
Tube
Serum Gel
ID
12781
Additional Information
Muscle specific tyrosine kinase antibodies are found in up to 50% of acetylcholine receptor antibody negative myasthenia gravis patients. This appears to be related to geographical location and the proportion is nearer 25% in the UK. Not currently within scope for UKAS accreditation.
Turn around
Refer to relevant laboratory for up to date turnaround times, allowing an additional 10 working days for samples processing, dispatch and reporting and validation of the results (estimated 28 days)
Send to
Samples should be sent to the department of Clinical Immunology at LGI who will refer to appropriate referral lab (Sheffield PRU)
Contact
Collection Con
No restrictions
Frequency
Referred to external laboratory
Sample REQ
Blood
Ref. Range Notes
Positive/Negative
Units
See reference range on referral website
IP Acute TAT
Contact referral laboratory. Contact Immunology at LGI if sample is to be sent urgently.
IP Routine TAT
Refer to relevant laboratory for up to date turn around times, allowing an additional 10 working days for samples processing, dispatch and reporting and validation of the results.
GP Acute TAT
Contact referral laboratory. Contact Immunology at LGI if sample is to be sent urgently.
GP Routine TAT
Refer to relevant laboratory for up to date turnaround times, allowing an additional 10 working days for samples processing, dispatch and reporting and validation of the results.