Arthroscopic procedures require only one small incision through which all the instruments are passed

Which of the following tests is used to assess platelet function in vivo?

a. Prothrombin time b. Activated partial thromboplastin time c. Bleeding time d. Platelet aggregation studies

An unrestrained woman driving a small car is involved in a rollover-type collision. Why her risk for serious injury and death is significantly increased?

A) Rollovers are the result of high speeds. B) Smaller and lighter cars tend to roll over. C) There are more impacts in a roll over. D) The risk for ejection is lessened, increasing injuries suffered in the car.