73818-7
LaboratoryHeparin induced platelet IgG Ab in Serum or Plasma by Immunoassay
Definition
Heparin induced platelet (platelet factor 4, PF4) IgG antibodies are measured in optical density as part of an immunoassay. A OD value of >0.4 is considered an initial positive test. Additional heparin may be added to the patient's serum to determine percent inhibition by heparin (see LOINC 73817-9) and confirm a positive result.
LOINC 6-Axis Classification
Component
Platelet factor 4 heparin complex induced Ab.IgG
Property
OD
Time Aspect
Pt
System
Ser/Plas
Scale Type
Qn
Method Type
IA
Details
Class
SERO
Order/Observation
Both
Short Name
PF4 heparin cmplx IgG SerPl IA
Display Name
Heparin induced platelet IgG IA [OD]
Related Names
Frequently Asked Questions
What is LOINC code 73818-7?
LOINC code 73818-7 identifies "Heparin induced platelet IgG Ab in Serum or Plasma by Immunoassay". Heparin induced platelet (platelet factor 4, PF4) IgG antibodies are measured in optical density as part of an immunoassay. A OD value of >0.4 is considered an initial positive test. Additional heparin may be added to the patient's serum to determine percent inhibition by heparin (see LOINC 73817-9) and confirm a positive result.
What does 73818-7 measure?
This code measures Platelet factor 4 heparin complex induced Ab.IgG in Ser/Plas. It belongs to the SERO class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.