Carefully scoop up mercury from a broken thermometer with a piece of paper.

The practice of notifying a receiving hospital of an ambulance's impending arrival began in the:

A) 1960s. B) 1970s. C) 1980s. D) 1990s.

The elution methods best suited for cold-reactive antibodies include all of the following except

a. Digitonin acid b. Landsteiner and Wiener heat c. Lui's freeze-thaw d. Sonication