When obtaining venous blood with a vacuum tube, the tip of the needle should be inserted into the vein at a ____-degree angle

The bell factor for a 9-L water-sealed spirometer bell is _____ mL/mm

a. 13.5 c. 20.93 b. 29.3 d. 41.73

Concierge care does not offer patients which of the following?

a. Free parking b. Coordination of any specialist referrals c. Hospitalization coverage when needed d. Home or work visits as needed