The activated partial thromboplastin time (aPTT) is a sensitive version of the PTT and is the most commonly used blood test to monitor heparin therapy. The aPTT evaluates the function of the intrinsic clotting system (as you can see on the coagulation cascade). It measures the clotting time ...
low BMI (OR 1.8, 95% CI 1.3-2.5), being admitted to a surgical service (OR 0.5, 95% CI 0.3-0.8), and receipt of high-dose (> 10,000 units in a day) unfractionated heparin prophylaxis (OR 1.4, 95% CI 1.003-2.0), were independently associated with aPTT prolongation after LDUH expos...
(2 volumes). The precipitate formed is collected by centrifugation, washed with ethanol and dried at 60°C under vacuum. Finally there are obtained 780 grams of white coloured powder having the following characteristics: USP Titer: 22 μ/mg; Yin and Wessler Titer: 260 μ/mg; APTT Titer: ...
Low-molecular weight heparins (e.g. enoxaparin) do not require PTT or aPTT monitoring.DVT prophylaxis, angina unstable.Monitor for bleeding. Usual Lovenox dose 30-40mg SC q day x7-10 days, start 12 hrs preop.May continue 40mg SC q day x3 weeks as extended prophylaxis....
1,200 g of products having the following characteristics were collected: USP titer: 19 μ/mg; APTT titer: 13 μ/mg; Yin and Wessler titer: 202 μ/mg.In 10 liters of distilled water, at room temperature (15°-20°C) 1,000 grams of commercial injectable heparin having a USP titer of...
BACKGROUND: The management of heparin therapy in patients who have a subtherapeutic activated partial thromboplastin time (APTT) despite high doses of hepa... Levine,Mark N. - 《Archives of Internal Medicine》 被引量: 913发表: 1994年 Evaluation of an amidolytic heparin assay method: Increased ...
(embolectomy).Rightfootbecamecoldand pulseless HCT0.33 WBC7x10 9 /L PLT17x10 9 /L INRNormal aPTT52s Diagnosis HeparinInducedThrombocytopeniawith Thrombosis HITHistory Heparinwasintroducedasatherapyin the1930’s Thrombosiscausedbyheparinwasnot founduntil1957 In1969itwasfoundthatthrombosis occurredwith...
such as APACHE II score) and mar- banstartingdosewas0.32±0.25μg/kg/min(min,0.04 kers of hepatic and renal failure were included in the μg/kg/min;max,0.83μg/kg/min)toachieveaPTTs60 multipleregressionanalysis.Statisticalanalysiswasper- sec or aPTTs of 1.5 to 3 times the baseline aPTT....
of pure ethanol (2 volumes). The precipitate formed was collected by centrifugation, washed with ethanol and dried at 60°C under vacuum. 1,200 g of products having the following characteristics were collected: USP titer: 19 μ/mg; APTT titer: 13 μ/mg; Yin and Wessler titer: 202 μ/...
carry out before catheterization and disable heparin tube solution 24h prothrombin time (PTT), activated partial thromboplastin time (APTT), fibrinogen (Fg), and observe for any signs of bleeding (such as skin, mucous membrane with or without bleeding), while recording the retention time of indwel...