title: [Peroral anticoagulant therapy--are the TT-values reliable?].
abstract: As part of the Norwegian Medical Association's quality assurance programme for the primary health care sector we have investigated the lasting quality of the specimens drawn for determination of Thrombotest. Blood drawn into siliconated glass tubes resulted in varying Thrombotest values, depending on the time of analysis after specimen collection. Reliable Thrombotest values are needed to be able to administer the correct dosage of warfarin. Thrombotest analysis should therefore be performed within two hours, or after 48 hours of specimen collection.
authors.affiliation: Klinisk Kjemisk avdeling Sentralsykehuset i Akershus, Nordbyhagen.
authors.forename: H
authors.initials: H
authors.lastname: Eilertsen
authors.forename: A F
authors.initials: AF
authors.lastname: Asprang
authors.forename: K
authors.initials: K
authors.lastname: Ulveland
authors.forename: H J
authors.initials: HJ
authors.lastname: Nerdrum
mesh_terms: D000284:Administration, Oral; D000925:Anticoagulants / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D009664:Norway; D011517:Prothrombin Time; D011785:Quality Assurance, Health Care; D013997:Time Factors; D014859:Warfarin / Q000008:administration & dosage / Q000009:adverse effects
chemical_list: D000925:Anticoagulants; D014859:Warfarin
vernacular_title: Peroral antikoagulasjonsbehandling--er TT-verdiene til å stole på?