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Test Code LAB90124 Heparin-PF4 Antibody, Serum

Additional Codes

45865

Reporting Title

Heparin-PF4 AB

Methodology

PF4 Enhanced Enzyme-Linked Immunosorbent Assay (ELISA)

Used to detect antibodies found in patients undergoing heparin therapy.

Performing Laboratory

OhioHealth Laboratory Services-RMH Core Coagulation

Specimen Requirements

Submit only 1 of the following specimens:

 

Riverside Inpatients or Riverside Campus draw sites:

 

Draw a plain red-top tube and send unprocessed blood promptly at ambient temperature, refrigerated if there is a delay. 

Note:

1. This assay requires its own specimen.

2. Gross hemolysis, icterus, and lipemia may affect results.

3. Label specimen appropriately

 

Outpatients/Outreach Clients

Plasma-Frozen

Draw a red-top tube. Spin down, remove serum and place 1 mL in plastic vial. (Glass vial is not acceptable.) Pour-off vial should be no more than 2/3 full. Send specimen frozen.

Note:

1. This assay requires its own specimen..

2. Gross hemolysis, icterus, and lipemia may affect results.

3. Label specimen appropriately (serum).

 

Serum that cannot be tested immediately should be stored in a 2-8 C for no longer than 48 hours. Samples frozen at -20 C or below remain in good condition for several years but freeze/thaw cycles should be avoided.  Serum should be separated from red cells when stored or shipped.

Specimen Transport Temperature

Ambient/Refrigerate NO/Frozen NO-Blood

Frozen/Refrigerate NO/Ambient NO-Serum

Reference Values

Negative

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding

86022