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Factor 7

eDH Procedure Code(s)

LAB305 Factor 7 Activity
LAB2119 Mixing Study
LAB3932 Bleeding Diathesis Screen

Order Questions

LAB2119 Mixing Study
  • Indication for testing?
LAB3932 Bleeding Diathesis Screen
  • Relevant Patient History:
  • Relevant Family History:
  • Aspirin, NSAIDS, or Antiplatelet drugs?
  • Warfarin, Heparin, Other anticoagulant?
  • Is Platelet Function testing required?

Collection Information

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.

Specimen Information

Specimen Type Specimen Source Acceptable Containers Minimum Test Volume (mL)
Blood Blood, Venous BluCit-F 1.0
Blood Blood, Venous OrgCit-F 0.5
Blood Blood, Venous Adjusted-F 1.0

Shipping and Handling

Processing Instructions: Double spin, separate, and freeze.

Transport Temperature: Frozen
Transport Instructions: N/A

Specimen Stability Unprocessed
Unprocessed: 4 hours
Specimen Stability Post Processing
Ambient: 4 hours
Refrigerate: N/A
Frozen: 2 weeks

Test Components

Component LOINC Code
FACTOR VII ACTIVITY 3198-9

Turnaround Time (TAT)

8 Days

CPT Code(s)

85230

Performing Lab Section

Coagulation

Performing Lab(s)

Dartmouth Hitchcock Medical Center Laboratory (MHMH)