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
In contrast to heparin, enoxaparin: 
Select and explain. 
A. Can be used without monitoring the patient's aPTT, B. Is less likely to have a teratogenic effect, C. Is more likely to be given intravenously, D. Is more likely to cause thrombosis and thrombocytopenia
A: Can be used without monitoring the patient's aPTT
Answer: A: Can be used without monitoring the patient's aPTT 
Explanation: Enoxaprin is a LMW heparin. It does not require monitoring. Both heparin as well as enoxaprin do not cross placenta and are not teratogenic.