A. The appearance of the QRS complex in this case indicates the presence of a(n)

a. complete AV heart block. b. RBBB.

c. incomplete heart block. d. 1st-degree AV heart block.

B. The rabbit ear appearance of the QRS complex is technically  referred to as

a. QR9S. b. Q9R9S9.

c. RR9. d. R9SR.

B. List the ECG changes that can indicate the presence of enlargement and hypertrophy.

C. Hypertrophy is identified by changes in the

a. P waves.

b. QRS complexes.

c. T waves.

d. PR intervals.

D.  Which of the following are changes seen in the ECG that can indicate the presence of enlargement or hypertrophy?

a. An increase in duration of the waveform

b. A biphasic waveform

c. Axis deviation

d. All of the above