Results 261 to 270 of about 353,583 (326)
Some of the next articles are maybe not open access.
Erroneous Activated Partial Thromboplastin Time
Annals of Internal Medicine, 1978Excerpt To the editor: We wish to draw attention to the problem of erroneous results of activated partial thromboplastin times (aPTT) when plasma samples from patients on heparin are tested with th...
John Owen, Kelvin Carstairs, Eren Payne
openaire +3 more sources
International Journal of Laboratory Hematology, 2018
Although tests of global hemostasis prothrombin time (PT) and activated partial thromboplastin time (aPTT) should not be used for prediction of bleeding risk, these tests are often used by many clinicians in daily practice particularly as a preoperative ...
M. Falay+7 more
semanticscholar +1 more source
Although tests of global hemostasis prothrombin time (PT) and activated partial thromboplastin time (aPTT) should not be used for prediction of bleeding risk, these tests are often used by many clinicians in daily practice particularly as a preoperative ...
M. Falay+7 more
semanticscholar +1 more source
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.
Valerie M. Hauser, Susan L. Rozek
openaire +2 more sources
Journal of Veterinary Emergency and Critical Care, 2016
OBJECTIVE To evaluate the relationship between shortened prothrombin time (PT) or activated partial thromboplastin time (aPTT) values, clinical findings associated with hypercoagulability, suspicion of pulmonary thromboembolism (PTE), D-dimer ...
Jennifer Song+2 more
semanticscholar +1 more source
OBJECTIVE To evaluate the relationship between shortened prothrombin time (PT) or activated partial thromboplastin time (aPTT) values, clinical findings associated with hypercoagulability, suspicion of pulmonary thromboembolism (PTE), D-dimer ...
Jennifer Song+2 more
semanticscholar +1 more source
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, Ruchika Goel, Paul M. Ness
openaire +2 more sources
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”.
Okpara Ra, Carabello Ja, Day Hj
openaire +3 more sources
False Elevation of Partial Thromboplastin Time and Prothrombin Time
JAMA: The Journal of the American Medical Association, 1970A partial thromboplastin time (PTT) and a prothrombin time (PT) performed as routine preoperative screening on a young woman hospitalized for preeclampsia were unexpectedly and markedly prolonged. Since there was no clinical suspicion of a bleeding disorder, and since results of numerous repeat tests were normal, an artifact was suspected.
Peter McPhedran, Robert E. Humphreys
openaire +3 more sources
Use of the Activated Partial Thromboplastin Time
Annals of Internal Medicine, 1988Excerpt To the Editor:In connection with a recent article (1), I pose a question. Should peridural anesthesia in women with otherwise normal bleeding history be preceded by coagulation tests to pre...
openaire +3 more sources
The activated partial thromboplastin time (APTT) [PDF]
The 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
openaire +1 more source
Routine Use of the Prothrombin and Partial Thromboplastin Times
JAMA: The Journal of the American Medical Association, 1989The prothrombin time (PT) and activated partial thromboplastin time (APTT) tests are often routinely ordered for hospitalized patients. Ordering patterns and clinical indications for the PT and APTT tests on the medical service at a teaching hospital were studied. Eighty-one percent of all patients admitted to the medical service had a PT and APTT test
Stephen Erban, Kinman Jl, Schwartz Js
openaire +3 more sources