A gastrointestinal stromal tumor (GIST) is a type of tumor that occurs in the gastrointestinal tract, most commonly in the stomach or small intestine.The tumors are thought to grow from specialized cells found in the gastrointestinal tract called interstitial cells of Cajal (ICCs) or precursors to these cells. gastrointestinal stromal tumor (GIST) is a type of tumor that occurs in the gastrointestinal tract, most commonly in the stomach or small intestine.
Warfarin Maintenance Dosing and INR Recall Algorithms These algorithms are intended to be used after the patient has gone through the initiation period and a chronic maintenance dose has been established. Target INR 2.5 (Range 2.0-3.0) INR â¤1.5 1.51-1.99 2.00-3.00 3.01-4.00 4.01-4.99 5.00-10.00 >10.00 Dose Change1
1 So many drug interactions are possible with warfarin that prescribing any medication to the patient taking warfarin should give the physician pause to consider the potential for drug toxicity or to consult a prescribing formulary.onsider reducing the warfarin dose by 25% when giving it in combination with amiodarone. Some medications can induce warfarin metabolism, thereby reducing the risk of bleeding. Failed anticoagulation has been observed when rifampin, carbamazepine, phenobarbital, or phenytoin is given in combination with warfarin.