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Key features of the ECG


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Lapras Fan


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[Front]


Which patients do we do ECGs for
[Back]


Chest pain Collapse Palpitations Dizziness Shortness of breath

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Key features of the ECG - Marcador

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Key features of the ECG - Detalles

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16 preguntas
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Which patients do we do ECGs for
Chest pain Collapse Palpitations Dizziness Shortness of breath
What is the systematic approach of interpreting an ECG
Patient details → Name/DOB Rate Rhythm Axis P wave P-R interval QRS interval Q-T interval T wave
What are some causes of atrial fibrillation
Electrolyte disturbance Valve disease Infection Ischaemic heart disease
What are some causes of left axis deviation
Left ventricular hypertrophy --> hypertension
What are some causes of right axis deviation
Right ventricular hypertrophy --> COPD etc.
If a person has left axis deviation, how would it show on a ECG
Lead I would be positive Lead II would be negative
If a person has right axis deviation, how would it show on a ECG
Lead I would be negative Lead II could be either
What is a normal P-R interval
0.12-0.2s ( 3-5 small squares )
In the 3 degrees of heart block, what happens to the PR intervals in each
1st degree heart block --> prolonged PR intervals 2nd degree heart block --> eratic PR intervals, rate of P waves is regular but sometimes QRS complex does not pop up 3rd degree heart block --> no association between PR and QRS complex
What does this show>?
A ST depression which could be a sign of oxygen shortage --> angina
What does this show?
The first one shows a elevated ST The second one shows inverted T and pathological Q waves Both of these can be a sign of myocardial infarction
What are some murmurs that can be heard in diastole
Aortic Regurgitation and Mitral stenosis ( ARMSD )
What are some murmurs that can be heard in systole
Aortic stenosis and Mitral Regurgitation ( MRASS )
What is ectopic foci in the atria?
Disorganised electrical signals
How can you tell if it is a LBBB or RBBB
For left --> WilliaM ( V1 and V6 ) For right --> MarroW ( V1 and V6 )