Mod 4 OSCE Flashcards
Order of ECG interpretation
- This is a 12 lead ECG of (Name, DOB, Hospital No.)
- Taken on ___
- Speed is 25mm/sec, ECG is calibrated
- Axis Deviation
- Rate
- Rhythm strip - Regularity, P-waves (followed by QRS? Shape?), QRS, T waves, PR intervals, QT
- Rest of the leads - same? R-wave progression? Poor due to prev MI or obesity. Flutter waves?
- Summarise and suggest diagnosis
In normal cardiac axis
- Lead I is normal
- Lead II is normal (maybe taller than I)
- Lead III is neutral
P wave too tall
RA abnormality
(congenital heart disease, pulmonary disease)
How long should a PR interval be?
3 - 5 small squares
QT interval is?
Time taken for ventricles to depolarise then repolarise
QRS too wide?
Supraventricular - BBB, Brugada, pre-excitation
Ventricular - Ectopic, pacemaker
ST segment elevation
STEMI, Pericarditis
T wave represents
Ventricular repolarisation
In which leads would you see changes for lateral heart damage?
- I
- AVL
- V5
- V6
How wide should a QRS complex be?
< 3 small squares
In right axis deviation
- Lead I is small, neutral, negative
- Lead II is normal
- Lead III is normal, maybe taller than II
PR interval too long?
1st or 2nd degree heart block
P wave too broad?
- Valve disease, HTN, Cardiomyopathy, Coronary Heart Disease
QRS too tall?
Ventricular hypertrophy
In left axis deviation
- Lead I is positive, small
- Lead II is negative
- Lead III is negative, taller than II
T wave - too tall?
Hyperkalaemia
The anterior surface of the heart is supplied by the?
Right Coronary Artery (RCA)
Which leads would you see changes in for septal damage?
- V1
- V2
Q wave?
Previous MI
What should you screen for after RAV and ICE?
- SOB
- Chest pain
- Palpitations
- Syncope/dizziness
The inferior heart is supplied by?
Right coronary artery
ABPI ranges?
What view is this?
Axial