What is the most commonly used improvised explosive device?

_____ is usually hidden on an EKG tracing because it happens during the QRS complex

a. Atrial depolarization b. Atrial repolarization c. Ventricular depolarization d. Ventricular repolarization

Swelling of the feet, legs, hands, and/or face could indicate an electrolyte imbalance.

Answer the following statement true (T) or false (F)