EKGs

Question 1

Normal PRI

Answer 1

.12-.20

Question 2

Normal QRS

Answer 2

Less than or equal to .10

Question 3

Wandering Atrial Pacemaker

Answer 3

3 different types of P waves. Typically a normal rate of 60-100 (vs MAT which is >100 and distinguished from A. Fib in that there are P waves)

Question 4

Atrial Tachycardia

Answer 4

Rate 100-250
Rhythm Regular
Atrial P waves.

Question 5

AVNRT

Answer 5

Rate 150-250

No p waves. No PRI

Question 6

A Flutter

Answer 6

Rate: appx 300 Atrial
Rhythm: Atrial is regular, Vent is regular or irregular
Characteristic sawtooth flutter waves
Vent rate > 100 considered “uncontrolled”, > 150 is “rapid”

Question 7

A. Fib

Answer 7

no p waves

irregularly irregular

Question 8

WPW

Answer 8

Delta wave
Short PRI
Wide QRS
Regular rhythm

Question 9

1st degree AV Block

Answer 9

PRI > .20 and constant
Rate normal
Rhythm: Atrial= regular, Vent= regular

Question 10

2nd Degree AV block: TYPE 1

Answer 10

Rate: Atrial > Vent
Rhythm: Atrial = regular Vent= irregular
PRI lengthens until P is not followed by a QRS

Question 11

2nd Degree AV Block: TYPE 2

Answer 11

Rate: Atrial>Vent
Rhythm: Atrial = regular Vent= irregular
Some P’s are not followed by a QRS. The PRI is constant

Question 12

2nd Degree AV Bock with 2:1 conduction

Answer 12

Rate: Atrial> Vent
Rhythm: Atrial= regular Vent= regular
Every other P wave has no QRS. PRI constant

Question 13

3rd Degree AV Block/Complete Block

Answer 13

Rate: Atrial>Vent
Rhythm: Atrial= regular, Vent= regular
Atria and Ventricles beat independent of each other, some P’s without QRS

Question 14

Tx sinus bradycardia

Answer 14

Atropine

Question 15

How do you know if the underlying rhythm originated from the SA node?

Answer 15

P waves are upright

Each p wave associated with a QRS

Question 16

EKG findings hypercalcemia/hypocalcemia

Answer 16

Hypercalcemia shortened QT

Hypocalcemia prolonged QT