Download ECG - Derriford ED

ECG Rhythm
recognition.
LEARNING OUTCOMES.
• To recognise and understand the ‘Normal’
heart rhythm and what it represents.
• To perform a step by step basic rhythm
strip analysis.
• To recognise common cardiac
arrhythmias.
Conduction system of the heart.
Normal sinus rhythm
7 Questions to ask.
1. Is the rhythm fast or slow?
2. Are all the P waves alike?
3. Are all the QRS complexes alike?
4. Is there a P wave in front of every QRS?
5. Is the PR interval constant or does it vary?
6. Is the PR interval too short or too long?
7. Is the QRS complex widened?
Common Rhythms?
Tachycardia
Bradycardia
AF
Heart Blocks
12 lead ECG may be required to confirm a
diagnosis.
Common Rhythms.
Atrial Fibrillation
Atrial Flutter
First degree heart block
Second degree heart block
Complete heart Block/Third degree heart
block.
Look back at the conduction picture and
consider where these blocks are!
Ectopic beats.
Atrial Ectopic Premature atrial
conduction
Ventricular Ectopic Premature
ventricular conduction.
What symptoms may your patient
present with if they experience a
change is heart Rhythm?
Discuss possible causes of a
cardiac arrhythmia.
POP QUIZ!
1. Which stage of Normal sinus rhythm represent ATRIAL
DEPOLARISATION?
2. What does the T wave on ECG represent?
3. Describe how to measure HR on 12 Lead ECG.
4. Which Heart Block presents with a prolonged P-R interval?
5. How can you tell the difference between an atrial or a ventricular
premature conduction?
6. What HR may be on the cardiac monitor if patient is in PEA?
7. What is the normal length of time for the P-R interval?
8. What does the term Paroxysmal mean?
There is a prize for the winning team!!
Further reading and references.
•
•
•
•
J. R. Levick (2003) 4th ed. An introduction to
cardiovascular Physiology.
ECG Interpretation made incredibly
easy.(2011) 5th ed - Available as PDF
online.
http://www.youtube.com/cardiacconduction
http://www.nhlbi.nih.gov/health/healthtopics/topics/arr