52751-5

LOINC 2.82

aPTT.factor sensitive in Platelet poor plasma by Coagulation assay

aPTT-FS PPP

Definition

  • Factor substitution aPTT assays may be used to investigate prolonged conventional aPTT results. Factor substitution reagents are sensitive to deficiencies in factor VIII, IX, XI and XII. If the factor substitution 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]

Component

  • Coagulation

Specimen / system

  • PPP

Class

  • COAG

Property

  • Time

Scale

  • Qn

Method

  • Coag.surface induced.factor substitution

Related names

  • aPTT; aPTT-FS; Clot; Clottable; Coag; Coagulation assay; Fac; Fact; Hematology; Heme; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; Surf; Tilt tube

Index terms

  • aPTT
  • aPTT-FS
  • Clot
  • Clottable
  • Coag
  • Coagulation assay
  • Fac
  • Fact
  • Hematology
  • Heme
  • Plas
  • Platelet poor plasma
  • Point in time
  • QNT
  • Quan
  • Quant
  • Quantitative
  • Random
  • Surf
  • Tilt tube