Rhthym Recogn

Question 1

REG
Normal P wave
PR interval > 0.2 secs
QRS normal

Answer 1

1st Degree heart block

Question 2

REG. IRR
P wave present
P: QRS variable

Answer 2

2nd Degree type 1

Question 3

REG. IRR
P wave regular
PR Interval stays the same
QRS RATIO : variable 3:2, 4:3, etc

Answer 3

2nd Degree type 2

Question 4

P waves and QRS both present but dissociated from each other
Reg but P and QRS rate different.
QRS wide or normal

Answer 4

3rd degree heart block

Question 5

Indeterminate rate

Chaotic rhythm

Answer 5

Ventricular fibrillation

Question 6

Rate 100 +
Reg
Wide & bizarre

Answer 6

Ventricular tachycardia

Question 7

Peri-arrest (PEA)
Heart rate <20
No P wave
Wide, bizarre QRS, originating in ventricles

Answer 7

Agonal Rhythm

Question 8

Rate 40-100
Reg
No P wave
Wide QRS

Answer 8

Accelerated idioventricular rhythm

Question 9

Rate 20-40
Reg
No P wave
Wide QRS

Answer 9

Idioventricular rhythm

Question 10

Irregular
No P wave
QRS: wide - bizarre

Answer 10

Premature ventricular contraction

Question 11

Reg

P wave - none, Nategrade or retrograde

Answer 11

Junctional rhythm

Question 12

IRR, IRR

P waves: none, chaotic, atrial activity

Answer 12

Atrial fibrillation

Question 13

Saw tooth pattern
Usually reg
P:QRS variable common 2:1

Answer 13

Atrial flutter

Question 14

Narrow QRS
P waves hidden or retrograde
Reg or irregular
Originates in atria or AV

Answer 14

SVT

Question 15

Short PR interval <0.12
Wide QRS, Presence of delta wave
ST-T wave changes or abnormalities
Association with paroxysmal tachycardia

Answer 15

Wolff Parkinson white

Question 16

QT 0.36-0.44
QTc
Male >440ms
Females > 460ms
>500ms higher risk for torsades

Causes-
Hypokalaemia
Hypocalcaemia
Medications- tricyclics anti depressants, methadone, ondansetron,clarithromycin,erythromycin

Answer 16

ProLonged QT

Question 17

Type 1: coved ST elevation >=2mm in v1-v3 followed by a negative T wave.
Type 2 : saddleback ST elevation
Type 3 : saddleback or coved ST elevation < 2mm.

Answer 17

Brugada

Question 18

QRS >0.12 secs
Slurred S wave in leads 1 & v6
RSR pattern in v1
Positive complex in v1

Answer 18

RBBB

Question 19

QRS >0.12 secs
Broad monomorphic R waves in 1 & v6
Broad monomorphic S waves in v1

Answer 19

LBBB

Question 20

Add depth of S wave in V1 & V2(deepest) to R wave in V5 or V6
LVH >35mm
Can appear to be ST elevation

Answer 20

Left ventricular hypertrophy

Question 21

P wave =
PR interval =
QRS =
Q-T =

Answer 21

P wave -<0.08 / 2 small squares
PR interval - 0.12 - 0.20 / 3-5 small squares
QRS - <0.12 / 3 small squares
Q-T - 0.35 - 0.43 / 9-11 small squares

Question 22

Upright in all leads except aVR & v1

Can be inverted in I’ll patient

Answer 22

T waves
Seen in -
Children normal findings
MI
BBB
Ventricular hypertrophy
PE
raised intracranial pressure