Various agonists are added to a stirred suspension of platelets and the decrease in light absorbed as platelets aggregate/agglutinate is measured.
Results are analysed by comparing the resultant aggregation curves with those of normal platelets.
Tube
05 (CP) – Citrate
ID
12742
Availability
By pre-arranged appointment only. Assays run Wednesdays and Thursdays
Additional information
**SAMPLES MUST NOT BE SENT IN THE AIRTUBE** Samples must be delivered to the laboratory by 11:00 am on the day of venepuncture.
This test is only available by specialist request from a Haematology Consultant and should be discussed with a member of the Haemostasis consultant team before arriving into the laboratory. All platelet testing is prearranged with the laboratory before samples are taken to ensure that relevant trained staff are available on the day to process the tests and ensure that we have contact information for the requestor.
Samples must not be subjected to agitation.
Turn around
4 weeks
Send to
Specialist Coagulation
Chancellor / Lincoln Wing Link Corridor
Pathology
Block 32
St James University Hospital
Beckett Street
Leeds
LS9 7TF
Contact
Collection Con
Citrate x 8 minimum (all citrate tubes must be filled to the line). Samples must be kept at room temperature and delivered to the laboratory immediately with minimal agitation.
Sample REQ
Blood
Ref. Range Notes
Interpretive comments added
Units
Descriptive report