Amanda Healy, a young woman with severe vaginal bleeding, is admitted to the emergency room. She is three months pregnant, and the physician is concerned about the volume of blood she is losing. (a)...

Amanda Healy, a young woman with severe vaginal bleeding, is admitted to the emergency room. She is three months pregnant, and the physician is concerned about the volume of blood she is losing. (a) What type of transfusion will probably be given to this patient? (b) Which blood tests will be performed before starting the transfusion?

A reticulocyte count indicated that 5% of Tyler’s red blood cells were reticulocytes. His blood test also indicated he had polycythemia and a hematocrit of 65%. Explain the connection between these three facts.

Mr. Chang has severely fractured his leg after falling from a ladder. His doctor is monitoring him for signs and symptoms of a lung embolism. Explain the doctor’s concern.