Fire hydrant inspections should be performed:

Which ECG abnormality is characterized by the absence of a P wave, a wide bizarre QRS, followed by a T wave of opposite polarity?

A. PVC B. PAC C. Atrial flutter D. Sinus block

A licensed practitioner will order a(n) ________ function test to evaluate a patient's lung volume and capacity.

Fill in the blank(s) with the appropriate word(s).