Which code would report an excision of a sacral pressure ulcer with skin flap closure and ostectomy?

Which action will compromise the quality of a specimen?

A. Drawing electrolytes in an amber tube B. Mixing a serum separator tube 5 times C. Partially filling a liquid EDTA tube D. Placing a cold agglutinin in a heat block

An insurance billing specialist will significantly increase career opportunities by pursuing certification in _________________________.

Fill in the blank(s) with the appropriate word(s).