Epic Code LAB305 Factor VII Activity
Test Name Alias
Factor 7 Activity | 8202 | Factor VII (7)
Interface Order Alias
10134
Quick Collect
+(1)S10POx3/F
Clinical Information
Used to evaluate congenital or acquired factor deficiencies. Also appropriate for monitoring oral anticoagulants and testing protein synthesis in the presence of liver disease. Can be used to monitor prothrombin concentrates.
Icons & Photos
3.2% Sodium Citrate
Collection Instructions
Specimen Collection: Blood
Container(s): Blue top (3.2% Na. Citrate)
Preferred Volume to Collect: 2.7 mL (full tube)
Minimum Volume to Collect: 1.8 mL (full tube)
Capillary collect ok: No
Microtainer acceptable: No
COLLECTION INSTRUCTIONS
-
Detailed instructions (link): Anticoagulant Correction for High Hematocrit
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Detailed instructions (link): Blue Citrate Tube
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Tube must be full. Do not over fill or under fill; look for the fill indicator lines.
- Gently invert 8 - 10 times to mix anticoagulant with blood.
- Specimen should be processed within 1 hour – See Processing Instructions below.
PROCESSING INSTRUCTIONS (Laboratory, Outpatient or Off-site collection)
Processed Specimen: Platelet Poor Plasma with a platelet count <10 X 109/L
Centrifuge/Spin: Yes
Aliquot: Yes
Processing Instructions:
- Centrifuge and remove plasma within 1 hour of collection.
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For detailed instructions to prepare platelet poor plasma please use the following (link): Preparing Platelet Poor Plasma
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- Separate plasma into 2-3 aliquots, minimum of 0.5 mL each.
- Freeze aliquots in plastic transport tubes immediately.
Transport Temperature:
- Ambient (up to 1 hour in whole blood state)
- Frozen (plasma only >4 hours)
Rejection Criteria
- Hemolysis
- Specimen has been thawed
Specimen Stability
Ambient: 1 hour (Whole blood state)
Frozen: 2 months
Laboratory Retention: 2 months
Test Frequency
Available Monday - Friday, usual TAT 1 - 4 days.
Reference Range
Adult: 50 – 150 %
Pediatric reference ranges have not been established.
Performing Department
Coagulation
Performing Department Laboratory Location
Corewell Health Reference Laboratory, Grand Rapids, MI
Methodology
Prothrombin (PT) clot based assay with plasma deficient substrate
CPT
85230
CDM Code
3058523001
Epic Test ID
1230100670
LOINC
Factor VII Activity: 3198-9
Mayo Access Code
SHO8202
Reviewed Date
3/23/2023