LOINC display name : aPTT.factor sensitive Coag (PPP) [Time];
LOINC long common name : aPTT.factor sensitive in Platelet poor plasma by Coagulation assay;
LOINC short name : aPTT-FS PPP;
LOINC description : Factor sensitive aPTT assays may be used to investigate prolonged conventional aPTT
results. Factor sensitive reagents are sensitive to deficiencies in factor VIII, IX,
XI and XII. If the factor sensitive aPTT result is prolonged, then further testing,
including individual assays for each factor, are performed to determine the specific
etiology of the clotting disorder. [PMID: 20880301];