Read the Following Excerpt from a Health Record: I Was

Read the following excerpt from a health record: I was asked to see Billy Caspar, an 8-year-old boy, to evaluate his anemia. Billy presented initially to his primary care provider with decreased energy and pallor. He had recently had a rash on his hands and a fever, both of which have improved over the past few days. A hematocrit was performed in the office and it was critically low. According to the information from this health record, which of the following statements is TRUE?

A) An Hct was performed in the office.
B) The medical profession caring for Billy Caspar wanted to determine the ratio of red blood cells to his total blood volume.
C) The patient was given a test that separated his blood.
D) All of the statements are true.