Cardiology

Question 1

P Wave

Answer 1

Atrial Depolarization

Question 2

PR interval

Answer 2

Time from the start of atrial depolarization to the start of ventricular depolarization

Question 3

QRS Complex

Answer 3

Ventricular Depolarization. This complex covers up atrial repolarization, which is happening during this period as well.

Question 4

ST segment

Answer 4

Moment of no electrical activity. During this time the ventricles are contracting.

Question 5

T Wave

Answer 5

Ventricular Repolarization

Question 6

SVT

Answer 6

Supra Ventricular Tachycardia. A blanket term for heart arrhythmias that are higher than 100 bpm. Also the arrhythmia originates at or above the AV node (above the ventricles).

Question 7

SA Node

Answer 7

The hearts pacemaker

Question 8

U Wave

Answer 8

Not commonly visible. Thought to be the re polarization of the purkinje fibers.

Question 9

First degree heart block

Answer 9

Long PR interval

Question 10

Second degree heart block mobitz type 1

Answer 10

Lengthening of PR interval until QRS is dropped

Question 11

Second degree heart block mobitz type 2

Answer 11

Dropped QRS complex. No lengthening of PR interval.

Question 12

Complete Heart Block

Answer 12

P waves in random places, no associated with the QRS at all.

Question 13

Delta wave

Answer 13

Wave added onto the Q Wave. Associated with WPW syndrome. Shortens the PR interval.

Question 14

Agonal rhythm

Answer 14

Variant of asystole. Mostly flat line with random p waves and QRS complexes that are wide spread.

Question 15

Shocking a pt at what time will send them into v-fib?

Answer 15

T Wave. Heart monitor needs to be synced during cardioversion in order to eliminate that possibility.