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HIT-PF4 Antibody with reflex to Serotonin Release Assay

eDH Procedure Code(s)

LAB2804

Order Questions

Procedure Question
LAB2804 HIT-PF4 Antibody with reflex to Serotonin Release Assay
  • Thrombocytopenia:
  • Timing of platelet fall:
  • Thrombosis or other sequelae:
  • Other causes of thrombocytopenia:
  • Score:

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 the 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 needed, 1mL sodium citrate tubes can be prepared by the laboratory. These are a non-vacuum orange screw cap tube with lab prepared anticoagulant. To obtain some of these custom tubes please call the coagulation laboratory at 5-9463.
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 Adjusted-F 1.0
Blood Blood, Venous BluCit-F 1.0
Blood Blood, Venous OrgCit-F 0.5

Shipping and Handling

Processing Instructions: Double spin, separate, and freeze. Separate within 4 hours of collection.

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
HIT-PF4 ANTIBODY 73819-5

Turnaround Time (TAT)

24 Hours

CPT Code(s)

86022

Performing Lab Section

Coagulation

Performing Lab(s)

Dartmouth Hitchcock Medical Center Laboratory (MHMH) 603-650-2200