This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Compared to high molecular weight heparin following is true about low molecular weight heparin ? \nSelect and explain. \nA. Monitoring is not needed for low molecular weight heparin, B. Daily two subcutaneous doses are essential, C. They are easily filtered at the glomerulus, D. They do not interact with plasma proteins', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Daily two subcutaneous doses are essential Advantages of LMWH Longer, more consistent and predictable response --> Single daily dose is sufficient by subcutaneous route. o Lower risk of osteoporosis and HIT syndrome. Bleeding chances are less : LMW heparins have a different anticoagulant profile. They selectively inhibit factor Xa with little effect on antithrombin and coagulation in general. They act only by inducing conformational change in AT III. They appear to have lesser antiplatelet action. As a result they have a small effect on a PTT and whole blood clotting time. Since a PTT/clotting times are not prolonged (much) laboratory monitoring is not needed, and the incidence of haemorrhagic complication is less. They are easily filtered from glomerular capillaries because of there smaller molecular weight. LMW heparins do not interact with plasma proteins.", 'role': 'assistant'}]