Thromboelastograph - Basic
Clinical Background:
Thromboelastography is a novel approach to examining the interaction between clotting factors and platelets in the presence of red cells, which resembles the in-vivo situation more closely than con...
Thromboelastography is a novel approach to examining the interaction between clotting factors and platelets in the presence of red cells, which resembles the in-vivo situation more closely than conventional coagulation testing where clotting factors and platelet function are assayed separately in red cell free plasma. The test measures the clotting time and also the tenslie strength of the formed clot, examination of the reaction cruver produce can allow the contribution of clotting factors and platelets to be assessed and suggest the appropriate product replacement therapy in a bleeding patient
Test Details
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Discipline:
Haemostasis
Haemostasis
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Specimen Container Adult:
Light blue - sodium citrate
Light blue - sodium citrate
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Specimen Container Paediatric:
Light blue - sodium citrate
Light blue - sodium citrate
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Minimum Volume Adult:
2.7mL
2.7mL
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Minimum Volume Paediatric:
1.3mL
1.3mL
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Special Requirement:
Tube must be correctly filled to line, to ensure correct ratio of blood to anticoagulant, ensure adequate mixing.
Tube must be correctly filled to line, to ensure correct ratio of blood to anticoagulant, ensure adequate mixing.
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Sample Stability:
2 hrs
2 hrs
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Transport Requirements:
Samples should be transported to lab without delay *samples should not be sent through the POD as it affects platelet activation*
Samples should be transported to lab without delay *samples should not be sent through the POD as it affects platelet activation*
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Freq Analysis:
On request
On request
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Add On Test:
tnu-tr.bloodsciencesadditions@nhs.net (external)
tnu-tr.bloodsciencesadditions@nhs.net (external)
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Quality Assurance:
UK NEQAS Blood Coagulation
UK NEQAS Blood Coagulation
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Interpretation:
Sample timing is absolutely critical meaning that all requests should be coordinated with the laboratory BEFORE samples are taken.
Sample timing is absolutely critical meaning that all requests should be coordinated with the laboratory BEFORE samples are taken.
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Reference Ranges:
Interpretation through Haematology medical staff
Interpretation through Haematology medical staff
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Factors Affecting Result:
*samples should not be sent through the POD as it affects platelet activation*
*samples should not be sent through the POD as it affects platelet activation*
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Other Info:
An indicator of the efficiency of global haemostasis.
An indicator of the efficiency of global haemostasis.
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Routine Contact Name:
RVI or Freeman Section Leaders
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Routine Telephone:
RVI: 0191 2820332, Freeman: 0191 2231195
RVI: 0191 2820332, Freeman: 0191 2231195
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Routine Email:
Joanne.hall8@nhs.net
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Specialist Test:
Yes
Yes
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Specialist Contact Name:
Haematology and Haemostasis Healthcare Scientist
Haematology and Haemostasis Healthcare Scientist
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Specialist Telephone:
0191 2139758
0191 2139758
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Specialist Email:
alison.brown93@nhs.net
alison.brown93@nhs.net