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Effect of Warfarin on the Activated Partial Thromboplastin Time
Drug Intelligence & Clinical Pharmacy, 1986Outpatients followed in an anticoagulation clinic were studied retrospectively to determine the effect of warfarin on the activated partial thromboplastin time (APTT). Twenty-nine patients were studied in part 1 of the trial to determine whether their APTT values were elevated when their prothrombin time (PT) was within 1.5 to 2.5 times the control PT.
V M, Hauser, S L, Rozek
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Bleeding in Patients With Activated Partial Thromboplastin Time Inhibitors
Southern Medical Journal, 1982We present a case in which an activated partial thromboplastin time (aPTT) inhibitor may have significantly contributed to prolonged bleeding in a patient and review five similar cases. The possibility of an aPTT inhibitor should be considered in the evaluation of patients with unexplained prolongation of PTT and PT.
S B, Kalish +3 more
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The activated partial thromboplastin time (APTT)
1992The term partial thromboplastin is used to distinguish the reagent from that used in the prothrombin time, since the APTT reagent lacks the apoprotein component of the complete tissue thromboplastin. The APTT is the main test for screening for intrinsic clotting defects including haemophilia. It is also used for detection of lupus anticoagulant and for
L. Poller, J. M. Thomson
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Kaolin-correctable Prolongation of the Activated Partial Thromboplastin Time
American Journal of Clinical Pathology, 1980Seven patients who had normal prothrombin times but prolonged activated partial thromboplastin times (aPTT) are described. The prolonged aPTT, obtained with micronized silica as the contact activating agent in a semi-automated optical end-point system, a nonautomated optical end-point system, and a conductivity end-point system, corrected to normal ...
M F, Briselli, L, Ellman
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Activated partial thromboplastin time measurements in citrated canine plasma
Journal of Comparative Pathology, 1992Activated partial thromboplastin times (APTT) were determined for citrated plasma samples obtained from healthy Beagle dogs. Significant variations were observed with different reagents and analysers in these studies emphasizing the importance of analytical variables in APTT measurements.
G O, Evans, R M, Flynn
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Micro-Activated Partial Thromboplastin Time in Diluted Capillary Blood
Pathophysiology of Haemostasis and Thrombosis, 1984A sensitive micromethod for estimating the activated partial thromboplastin time in diluted capillary blood with excellent reproducibility is presented, as are results of test conditions with regard to sampling, calcium concentration, osmolarity of the diluent and the influence of the packed cell volume.
A C, Zondag, G E, van Zanen
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The Activated Partial Thromboplastin Time and Factor Xl Deficiency
Annals of Internal Medicine, 1986Excerpt To the editor: Suchman and Griner (1) recommend that the activated partial thromboplastin time (APTT) not be determined before surgery because an adequate clinical assessment of a possible ...
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Prothrombin Time and Activated Partial Thromboplastin Time
2009Publisher Summary This chapter discusses the prothrombin time (PT) and activated partial thromboplastin time (PTT) which are two separate but related in vitro laboratory assays that are used to evaluate coagulation factors. Factors involved uniquely in the PTT are referred to as intrinsic pathway factors, whereas factors unique to the PT are referred
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Activated Partial Thromboplastin Time Evaluation
Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy, 2001openaire +2 more sources