________ spray is used to preserve slides

The medical assistant performing a venipuncture for a human immunodeficiency virus (HIV) test must ________.

A. wash hands thoroughly B. maintain temperature at a certain level C. tell the patient to fast for 8 hours prior D. take the blood sample while the patient is lying down

Percutaneous irrigation of pleural cavity for diagnostic study __________

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