This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hematology, Subject name: Pharmacology
As compared to unfractionated heparin, low molecular weight heparins 
Select and explain. 
A. Are absorbed more uniformly when given subcutaneously, B. Require more frequent laboratory monitoring, C. Cannot be given to patients with heparin induced thrombocytopenia, D. Predispose to a higher risk of osteopenia
A: Are absorbed more uniformly when given subcutaneously
Answer: A: Are absorbed more uniformly when given subcutaneously 
Explanation: Low molecular weight heparin has higher subcutaneous bioavailability. Lab monitoring is not required unlike heparin. LMWH has lower risk of osteoporosis and lower incidence of thrombocytopenia. From medical pharmacology padmaja 4th edition Page no 337, 339