NHA.

NHA Practice Test A CCMA must choose the correct tube color to correspond with which of the following? - Laboratory test Each tube color is drawn for a designated test. A CCMA must invert anticoagulant tubes to prevent which of the following? - Clotting A first-time patient is late arriving to the office. Which of the following should the CCMA say first? - "Hello. Welcome to our office." Clients should be greeted and welcomed before checking in, making appointments, or checking ...