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
Lateral ST Leads and Elevation needed for Cardiac Cath Lab Admission
I, aVL, V5-V6
2x 1mm
With ST Elevation in Lead III greater than that in lead II, which vessel is likely to be occluded?
RCA
With ST Elevation in Lead II greater than that in Lead III, which vessel is likely to be occluded?
Circumflex
