A patient is receiving lowmolecular-weight heparin to prevent thromboembolic complications. The ...

A patient is receiving lowmolecular-weight heparin to prevent thromboembolic complications. The nursing student asks her instructor the reason why this treatment is given instead of heparin.
 
  What is the instructor's best explanation of the rationale for LMWH over heparin?
  A) LMWH is associated with less thrombocytopenia than standard heparin.
  B) LWMH is associated with stronger anticoagulant effects than standard heparin.
  C) LWMH is given to patients who have a history of blood dyscrasia.
  D) LWMH is more effective than standard heparin for patients with hypertension.