Cardiology Flashcards
Normal PR interval
0.120s - 0.200s
5 small squares
Normal QRS interval
0.60s - 0.120s
3 small squares
Normal QT interval
< 0.440s
11 small squares
<0.470 in patients on antipsychotics
LBBB characteristics
Wide QRS QS/RS complex in V1 RsR in V6 Negative Slurred S in V6 Appropriate Discordance/Inappropriate Concordance
RBBB characteristics
Wide QRS
RsR in V1
Positive Slurred S in V6
Characteristics of WPW
Wolf Parkinson White
Short PR
Delta Wave
Hypokalaemia can cause…
ST Depression
Flat/Inverted T Waves
U Wave
Hyperkalaemia can cause…
Increased PR Interval
Tented T Waves
Wide QRS
Flat P Waves
Hypocalcaemia can cause…
Increased QT interval
Increased ST Interval
VF/VT
An R-on-T Polymorphic Tachycardia
Torsade-De-Pointes
The 4 LAS Arrhythmia Centres
The Brompton 578
St Barts 309
Hammersmith 304
The Heart @ UCH 1030
The LAS 8 24/7 Cardiac Cath Labs
London Chest 580 King's 713 Harefield 178 St Georges 927 Hammersmith 403 The Heart @ UCH 1030 St Thomas' 960 Royal Free 511
Anterior ST Leads and Elevation needed for Cardiac Cath Lab Admission
V1-V4
2x 2mm for Male
2x 1.5mm for Female
Posterior ST Leads and Elevation needed for Cardiac Cath Lab Admission
V7-V9
2x 0.5mm
Note ST Depression & Tall R Waves in Anterior Leads
Inferior ST Leads and Elevation needed for Cardiac Cath Lab Admission
II, II and aVF (inc. posterior leads in R dominant)
2x 1mm
Note Reciprocal changes in I and aVL