Vital signs, i.e. hight, pulse, blood pressure, temperatue, weight.Instruct patients about medications and special diets.Draw blood, spin blood in a centrifuge, preserve the specimen.Obtain throat and wound swabs for cultures.Collect and prepare laboratory specimens.Arrange examining room instruments and equipment.Position and drape patients for specialty exams.Keep waiting area and examining rooms neat and clean.Dispose of contaminated supplies.Sterilize and wrap medical instruments.Stock medical supply closets and other supplies.Prepare and administer medications as ordered by the physician.Call in prescriptions to a pharmacy as authorized by the physician.Medical billing and coding.Medical insurance claims processing.