Test Directory
Intrinsic Clotting Factor Assays
Containers - Adult
Green Cap Tube 3.0ml (Sarstedt)
|
Volume Range
3ml
Additive per Container
Sodium Citrate |
Containers - Child
|
1.4ml citrate sarstedt monovette tube
|
Volume Range
Additive per Container
Sodium Citrate |
Reference ranges
Intrinsic Clotting Factor Assays (Units: IU/mL)
|
|
FVIII (eight)
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FIX (nine)
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FXI (eleven)
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FXII (twelve)
|
|
*Neonates Day1
|
0.5 – 1.78
|
0.15 – 0.91
|
|
|
|
*Neonates Day5
|
0.54 – 1.54
|
0.15 – 0.91
|
|
|
|
*Infants Day30
|
0.50 – 1.57
|
0.21 – 0.81
|
|
|
|
*Infants Day90
|
0.50 – 1.25
|
0.21 – 1.13
|
|
|
|
*Infants Day180
|
0.50 – 1.09
|
0.36 – 1.36
|
|
|
|
Adult
|
0.50 – 1.50
|
0.50 – 1.50
|
0.7 – 1.50
|
0.5 – 1.50
|
*Applies to term infants – preterm infants may have a different value.
Laboratory Site
RIE
51 Little France Crescent
Old Dalkeith Road
Edinburgh
EH16 4SA
Old Dalkeith Road
Edinburgh
EH16 4SA
Telephone: 0131 536 1000
Transport arrangements
Specimen must be transported within a plastic sealable bag or other suitable container. Samples should be transported to the laboratory ASAP
How to request
Must be discussed and arranged with Haematology medical staff.
Availability
Monday - Friday: routine service 09:00 - 17:00. Saturday - Sunday: routine service 09:00 - 13:00
Please contact the laboratory for urgent samples outside of routine hours.
Anticipated turnaround
7 days
What happens if the result is positive or abnormal
The laboratory will telephone abnormal results where it appears that these are likely to be clinically significant. Please provide a telephone/ bleep number.
General additional information
The Intrinsic Clotting Factors comprise FVIII, FIX, FXI and FXII