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ID:285 Platelet Function Test
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DescriptionInvestigation of platelet function, including platelet aggregation, nucleotide estimation and platelet surface glycoprotein analysis.
IndicationBleeding diatheses where the indication may be due to irregular platelet function.
Additional InfoSamples 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.
Concurrent TestsPlatelet glycoproteins/nucleotides. PFA-100. Full Blood Count and blood film.
Dietary RequirementsNO aspirin or aspirin related products for 2 weeks prior to testing
InterpretationDescriptive report of platelet aggregation and glycoproteins is provided. Platelet nucleotides and PFA-100 are reported against a reference range.

DepartmentSpecialist Coagulation
SampleBlood
TubeCoagulation
Tube Picture
Collection ConditionsCitrate 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.
Min. Vol
Freq.As requested

Ref. Range (Male)See note
Ref. Range (Female) See note
Ref. Range (Paed) See note
Ref. Range NotesPlatelet Aggregation - Qualitative report: interpretive comments added. Platelet nucleotides: Total ATP: 25.5 to 68.9 Total ADP: 12.9 to 39.7 Released ATP: 4.1 to 18.9 Released ADP: 5.3 to 28.5. PFA-100: Collagen/EPI = 85-165secs, Collagen/ADP = 60-120secs. Platelet glycoproteins - interpretive comments added
Unitsnmol/10^9 (platelets
IP Acute TAT4 weeks
IP Routine TAT4 weeks
GP Acute TAT4 weeks
GP Routine TAT4 weeks
Turnround Comment

Originally edited by : RJAR. Review due on 10/01/2020 09:59:05. Published By RJAR on 10/01/2019 09:59:05.