Local anesthetic molecules have a greater affinity for protein receptor sites within the nerve membranes compared to which ion(s)?

In which of the following situations would a person lose heat by conduction?

A) Going outside without a coat during a cold but calm day B) Breathing C) Wearing wet clothing in windy weather D) Sitting on cold metal bleachers at a football game

Coagulation specimens are most often collected in which type of additive tube?

A) EDTA B) sodium citrate C) heparin D) sodium fluoride