ECG

Question 1

Sinus Rhythm

Answer 1

Normal ECG strip

originate from SA node

Question 2

Sinus Bradycardia

Answer 2

below 60

normal ECG strip

Question 3

Sinus Tachycardia

Answer 3

upper limit 100-150
Fast heart rate cause SHORTER QT
caused anxitey, pain fever, HF, decreased oxygenation, drugs/stimulants

Question 4

Supraventricular Tackycardia

Answer 4

Foci is initiated in atria or initiates the AV node.

suddenly starts and suddenly stops

Question 5

A flutter

Answer 5

saw tooth strip with QRS complexes
Atrial rate of 300/min
CAD, MI, hypertension

Question 6

A Fib

Answer 6

multiple pacemakers
artrial never fully depolarizes….it quivers, very irregular
No atrial kick
most common sustainable arrythimia
decreased CO
no desernable P waves
caused by inflammation of the heart, CAD, age,

Question 7

Tx for A fib and A flutter

Answer 7

cardioversion, Catheter ablation, meds (anticoago and antiarrythics)

Question 8

Premature Ventricular Complexes

Answer 8

Wide and bizzare QRS
ventricular contracts before the next sinus beat
hidden p wave
unifocal or multifocal
causes ischemia, MI, CHF, stress, elyte imbalances

Question 9

Ventricular Tachycardia

V Tach

Answer 9

3 or more ventriulcar complesxes in a row greater than 100

CHF, MI, cocaine OD, elyte imbalance.

Question 10

V Fib

Answer 10

D Fib the V fib
Lethal dysrythmias, must be treated quickly
No QRS

Question 11

AV block 1st degree

Answer 11

all are conducted but QRS delayed
prolonged PR interval
Document, continue to monitor, pt is stable

Question 12

2nd degree block

Type 1

Answer 12

PR lengthens until QRS is dropped,
Atrial rate regular
Venti rate slow and irregular
can be caused by vagal stimulation, post MI

Question 13

2nd degree

Type 2

Answer 13

atrial rate is the same, but random ventricular rate
wider QRS
caused by endocarditis, MI, age, beta blockers, digoxin
monitor for poor perfusion, may require pace maker, notify phycisian

Question 14

3rd Degree

Complete block

Answer 14

no condition between atria and ventricles,
No PR interval
Block in AV or bundle of his.
SA rate and AV rate but not the same rate.
More Ps than QRS
caused by Dig toxicity, MI, acidosis, hypoxia, hyperkalemia
notify physician, assess CO, prepare for Pacemaker placement

Question 15

Asystole

Answer 15

lethal dysrythmia
absences of ventriular activity
P waves my be present
caused by air embolism , HF. MI, OD, severe hemmorrhage.