Ordered: D5 RL IV at 133 milliliters per hour for 6 hours. What is the total volume to be infused?

The respiratory therapist is monitoring a patient in the medical ICU and notes multiple premature ventricular complexes (PVCs) on the cardiac monitor

The respiratory therapist elects to review the patient's medication administration record (MAR) for medications the patient is receiving to rule out medication toxicity as a cause of the PVCs. Which of the following medications should the therapist evaluate as a possibility of inducing PVCs? a. Theophylline b. Beta blockers c. Vitamin D d. Acetaminophen

The job of the cardiac conduction system is to

A) cause depolarization of myocardial cells. B) conduct electrical impulses. C) propagate electrical impulses. D) all of the above.