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A 53-year-old woman is seen in the emergency room because of right leg pain and swelling. Her symptoms began ten hours ago. Past medical history is notable for hypertension, osteoarthritis, and two uncomplicated pregnancies. The patient works as a management consultant and returned from a trip to Singapore two days ago. Temperature is 37.6°C (99.7°F), pulse is 75/min, and blood pressure is 153/86 mmHg. Physical examination reveals a swollen right calf two centimeters greater in circumference than the left calf. Dorsiflexion of the right foot elicits pain in the right calf. The patient is started on unfractionated heparin and is seen at a follow-up appointment one week later. Laboratory testing obtained in the emergency room and at the follow-up visit are shown below. Heparin is discontinued, and an alternative medication is started. Which of the following best describes this new medication's effect on antithrombin, factor IIa, and factor Xa activity? Laboratory Value Results (emergency room) Results (current) Hemoglobin 13.5 g/dL 13.7 g/dL Hematocrit 40.5% 41.1% Leukocyte Count 9,600/mm3 8,400/mm3 Platelet Count 160,000/mm3 65,000/mm3 Elimination tool Ski. Need Assignment Help?