While monitoring a patient's cardiac rhythm, you note that there is no electrical activity after a PQRST complex for a period equal to exactly three of the previous R-R intervals. This is most accurately described as:

Which muscle originates on the transverse process of the vertebrae and inserts on the rib below?

a. Serratus posterior b. Levator costarum c. Internal intercostal d. External intercostals

What type of metabolism occurs when energy is created with a balance of adequate oxygen and nutrients?

A) Anaerobic B) Aerobic C) Hypoxic D) Homeostatic