NEUROLOGY
SURGERY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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0.5 to 1.0
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1.5 to 2.5
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2.0 to 2.5
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3.0 to 3.5
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Detailed explanation-1: -For extensive deep vein thrombosis with or without pulmonary emboli warfarin should be started on day 5 of heparin therapy. The INR should be maintained between 2.0 and 3.0 for the vast majority of patients. Children with mechanical heart valves require an INR between 2.5 and 3.5.
Detailed explanation-2: -Just 0.2 mL of sodium (lithium) heparin (1000 IU/mL) added to 5 mL of blood will give a final heparin concentration of 40 IU/mL blood, sufficient for anticoagulation.
Detailed explanation-3: -[8]For patients who are on anticoagulant therapy, the therapeutic INR ranges between 2.0 to 3.0. INR levels above 4.9 are considered critical values and increase the risk of bleeding.
Detailed explanation-4: -For people taking warfarin, most laboratories report PT results that have been adjusted to the INR. These people should have an INR of 2.0 to 3.0 for basic “blood-thinning” needs. For some who have a high risk of a blood clot, the INR needs to be higher – about 2.5 to 3.5.