In which class of the Vaughn-Williams classification system of antidysrhythmic medications does lidocaine belong?

Which statement reflects the purpose of an additive or anticoagulant in a blood collection tube?

A) It may or may not allow the blood to clot. B) Thrombin is a type of clot activator added to speed the clotting process for STAT test results. C) It accelerates specimen processing. D) All of the above

Research indicates that "clustering" occurs when athletes in certain sports

A. sit together in their classes. B. are over-represented in specific courses and majors. C. join the same fraternities and go to the same parties. D. get the same grades even when take different courses.