What is the most critical step in a phlebotomy procedure? 

Using numbers 1 through 7, list the order of draw using an evacuated tube system for the following tests.

Which region of a phospholipid is polar (hydrophilic)?

The cells involved in cell-mediated immunity are _______.

Cytotoxic T cells release which two molecules when they recognize their target?

Which of the following statements about the spleen is FALSE?

What mechanism prevents coagulation in a lavender tube coated with EDTA from occurring?

Norepinephrine primarily activates _________ receptors. 

Dr. Smith ordered a blood sample to be collected on a newborn in the neonatal ICU a bilirubin test. What type of special collection is indicated for this order?

______ is a sleep disorder in which breathing temporarily and repeatedly stops.