This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pharmacology
As compared to unfranctioned heparin, low molecular weight heparins 
Select and explain. 
A. Are absorbed more uniformly when given subcutaneously, B. Require more frequent laboratory monitoring, C. Can be given to patients with heparin induced thrombocytopenia, D. Predispose to higher risk of osteopenia
A: Are absorbed more uniformly when given subcutaneously
Answer: A: Are absorbed more uniformly when given subcutaneously 
Explanation: Refer Katzung 10/e p 546 Unlike unfranctioned heparin, LMW heparins have more consistent SC bioavalilabilty and thus do not require monitoring Adverse effects of both type of heparins are similar Both are contraindicated in heparin induced thrombocytopenia