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HelpFactor 12 Assay
eD-H Order Code
LAB310
Specimen Collection Information
| Specimen | Minimum Test Volume | Container | Special Handling |
|---|---|---|---|
Blood |
Neonatal/Pediatric All other coag tubes must be filled to line on tubes. |
Specimen Transport Temperature
Double spin, separate, and freeze
Reference Ranges / Critical Values
| Assay | Gender | Age Range | Normal Range | Critical Values | Units |
|---|---|---|---|---|---|
| Factor 12 | All | 15 Days – 1 Months | 25 -81 | % | |
| 1 Months – 6 Months | 38 -137 | % | |||
| 6 Months – 1 Years | 48 -156 | % | |||
| 1 Years – 6 Years | 50 -175 | % | |||
| 6 Years – 11 Years | 49 -154 | % | |||
| 11 Years – 18 Years | 49 -154 | % | |||
| 18 Years – 150 Years | ≥50 | % |
Specimen Stability
4 hours
Additional Specimen Instructions
1.8 mL Sodium Citrate tube filled to the line
OR
2.7 mL Sodium Citrate tube filled to the line
Blue top tubes must be filled within 10% of stated volume. A discard tube must be used if a citrate tube is to be drawn using a winged blood collection set. It is important to remove air from the blood collection set to ensure the proper blood volume is obtained in the coag tube.
If the patient has a known hematocrit >55%, please contact the coagulation lab for an adjusted collection tube before drawing the blood.
CPT(s)
85280
Performing Lab Section
Hematology