In December 2009, Marion Peterson was admitted to Our Lady of Resurrection Hospital in Chicago because of respiratory distress. After several days in the intensive care unit, she was transferred to a stepdown unit and started on the anticoagulant Lovenox for atrial fibrillation. Atrial fibrillation is an irregular heartbeat or an abnormal heart rhythm that can be characterized by rapid or irregular beating of the hart. Some would describe atrial fibrillation as a quivering heartbeat or an irregular heartbeat; it can be very dangerous and lead to stroke or heart attack or other health issues. Symptoms of atrial fibrillation include lack of energy, dizziness and heart palpations.
On Dec. 18, 2009, Coumadin was initiated, which is another anticoagulant. However, Peterson, 72, became hypotensive and had a dangerously low blood pressure the next day, Dec. 19, 2009; she also experienced a 3 to 4 gm drop in her hemoglobin level.
She was then seen by several doctors until her internist, the defendant Dr. Danail Vatev, arrived. Once Dr. Vatev was involved in the medical care, he ordered a repeat hemoglobin test, a CT scan and other diagnostic studies. The hemoglobin test showed that Peterson had anemia, and Dr. Vatev ordered a blood transfusion, fresh frozen plasma (FFP) and vitamin K to reverse the anticoagulation effects.