Results 231 to 240 of about 79,996 (276)
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Activated Partial Thromboplastin Time
Scandinavian Journal of Haematology, 1981An internationally standardized preparation and 10 commercial kits widely used to perform the activated partial thromboplastin time (APTT) were compared in 4 laboratories for the purpose of assessing their ability to detect mild deficiencies of factor VIII activity.
N. Ciavarella +8 more
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Prothrombin and Partial Thromboplastin Time
2016Basic plasma coagulation function is readily assessed with a few simple in vitro laboratory tests, prothrombin time (PT) and partial thromboplastin time (PTT), and they are useful as the current standard for establishing a diagnosis of coagulopathy.
Ruchika Goel, Paul M. Ness
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Spurious Prolongation of the Activated Partial Thromboplastin Time
Thrombosis and Haemostasis, 1977SummaryThe clinical and laboratory data of 8 patients (4 males and 4 females) with circulating anticoagulant were presented. Based on prolonged APTT, failure to correct the APTT with 50 % normal plasma and abnormal tissue thromboplastin inhibition test, the inhibitor was identified as “middle stage” – or the “lupus anticoagulant”.
R A, Okpara, J A, Carabello, H J, Day
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Activated Partial Thromboplastin Time and Minor Coagulopathies
American Journal of Clinical Pathology, 1979Five commercially available activated partial thromboplastin time (APTT) test systems were compared with the kaolin partial thromboplastin time (KPTT) method to determine sensitivity in detecting minor coagulation defects. All reagent systems detected severe factor VIII-, IX-, and XI-deficient hemophilia.
W E, Hathaway +3 more
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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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Heparin and Partial Thromboplastin Time: an International Survey
British Journal of Haematology, 1980Summary.The reliability of routine partial thromboplastin time (PTT) methods in the measurement of the anticoagulant effect of heparin has been assessed in a study involving over 300 hospitals in the U.K. and overseas. Commercial PTT methods were relatively insensitive to heparin, added in vitro, compared with the standardized PTT method tested by the ...
L, Poller, J M, Thomson, K F, Yee
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The Partial Thromboplastin Time and Factor VIII Therapy
American Journal of Clinical Pathology, 1972A large pseudotumor was removed from a hemophiliac patient, necessitating the use of long-term, high-dose therapy with factor VIII concentrate. The patient's activated partial thromboplastin time rarely normalized in spite of high factor VIII assay levels. In addition, other routine tests of coagulation became abnormal.
C J, Bark, M J, Orloff
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The partial thromboplastin time
Journal of Thrombosis and Haemostasis, 2014P M, Blatt, G C, White
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Extremely Shortened Activated Partial Thromboplastin Times
JAMA: The Journal of the American Medical Association, 1980To the Editor.— The presence of a hypercoagulable state in patients with a shortened activated partial thromboplastin time (APTT) as manifested by the clinical association with an increased incidence of thromboembolic disease has previously been reported by Hume, 1 Gallus et al, 2 Pilgeram, 3 McKenna et al, 4 and McKenna et al.
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Partial Thromboplastin Time in Heparin Therapy
American Journal of Clinical Pathology, 1971C O, Burdick, C W, Colman
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