Q1.Mary heaky, the young woman with severe vaginal bleeding, is admitted to emergency room. She is three months pregnant, and physician is concerned about the volume of blood she is losing. What kind of transfusion will probably be given to this patient? What blood test would be performed before starting the transfusion?

Q2. Calcium levels in blodd are dropping to dangerously low levels. The hormone PTH is released and almost immediately calcium levels begin to rise. Shortly after, PTH release slows. Is it negative or positive feedback?