Final answer:
A patient extending their arm and turning their head away generally indicates implied consent for a CPCT to draw blood in a hospital setting.
Step-by-step explanation:
When a CPCT is preparing to draw blood from a patient in a hospital and the patient extends his arm and turns his head away, this typically indicates implied consent. Implied consent is a form of consent which is not verbally communicated or written down, but is rather inferred from a person's actions and the facts of a particular situation. In a medical context, when a patient presents themselves for a procedure like a blood draw and cooperates by making the draw site accessible, it is understood that they consent to the procedure.