TERMS

Question 1

referes to a supraventricular rhythm that originates from the SA node?

Answer 1

sinus rhythm

Question 2

P wave before a QRS complex

heart rate 60-100 bpm

Answer 2

normal sinus rhythm

Question 3

P wave before the QRS complex

heart rate > 100 bpm

Answer 3

sinus tachycardia

Question 4

P wave before QRS complex

heart rate < 60 bpm

Answer 4

sinus bradycardia

Question 5

sometimes, the sinus node is the sole pacemaker, but it emits impulses at varying rates

sinus node is the pacemaker, emits impulses at varying rates; but the P waves are identical and the rate is variable

Answer 5

sinus arrhythmias

Question 6

originate in the SA node and travel down the AV node to the bundle of His, the bundle branches and the purkinje fibers

all have a p wave followed by a QRS and only the number of impulses is varied

Answer 6

sinus rhythms

Question 7

sometimes, other foci in the atria emit impulses that follow the AV node BB pathway

look at the P waves

Answer 7

wandering atrial pacemaker

Question 8

precordial chest leads for septal portion of the heart?

Answer 8

V1 and V2

Question 9

precordial chest leads for anterior portion of the heart?

Answer 9

V3 and V4

Question 10

precordial chest leads for left portion of the heart?

Answer 10

V5 and V6

Question 11

what gauges the presence of ischemia and infarction?

Answer 11

ST segments and T waves

Question 12

ST segment elevation indicates?

Answer 12

more extensive ischemia

transmural infarction