W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart?...
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Transcript of W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart?...
![Page 1: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/1.jpg)
WEEK 8: ON THE BUSES
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Name the coronary arteries
Is this a left-dominant or right-dominant heart?
Name the branches off the aortic arch
![Page 3: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/3.jpg)
A PATIENT PRESENTS WITH EXCESSIVE SWEATING
Is this due to (sympathetic or parasympthetic) (activation or deactivation)?
Sympathetic activation What abnormalities of the cardiovascular system
would you expect to be associated with this? Positive chronotropy (inc HR), positive inotropy
(inc contraction force), positive dromotropy (increased AV nodal conduction velocity), positive lusitropy (increased rate of myocyte relaxation)
What neurotransmitter is associated with the post-ganglionic sympathetic synapses?
Noradrenaline
![Page 4: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/4.jpg)
COMPARE AND CONTRAST THESE WITH THE PARASYMPATHETIC SYSTEM
![Page 5: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/5.jpg)
Name the parts of the conducting system of the heartDoes the myocardium depolarise from left-right; right-left; inside-outside or; outside-inside
![Page 6: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/6.jpg)
Where within the heart would you find the following change in membrane potential?Which channels open to cause the various changes in membrane potential?
![Page 7: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/7.jpg)
A PATIENT PRESENTS WITH PALPITATIONS. GIVE A DIFFERENTIAL DIAGNOSIS FOR PALPITATIONS
Probability Diagnosis Anxiety Premature beats (ectopics) Sinus tachycardia Drugs
Serious MI/angina Arrhythmias (VT, bradycardia, sick sinus syndrome, Torsade de pointes) WPW syndrome Electrolyte disturbances (hypokalaemia, hypomagnesaemia, hypoglycaemia)
Pitfalls Fever/infection Pregnancy Menopause Drugs Mitral valve disease Aortic incompetence Hypoxia/hypercapnia Tick bites Phaeochromocytoma
Neuro Cardiac neurosis anxiety
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WHAT ARE THE MAIN MECHANISMS OF ARRHYTHMIA
Disorders of impulse formation or automaticity
Abnormalities of impulse conduction Re-entry Triggered activity
![Page 9: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/9.jpg)
WHAT ARE THE THREE ABNORMALITIES FOUND ON AN ECG TRACE FOR A PATIENT WITH WPW SYNDROME?
Short PR Wide QRS Delta waves
![Page 10: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/10.jpg)
DESCRIBE THE FOLLOWING ECG TRACES
![Page 11: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/11.jpg)
WPW syndrome
![Page 12: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/12.jpg)
Ischaemia – lateral side (shows in I, aVR, aVL, V4, V5 and V6
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WHAT IS THE TYPICAL MANAGEMENT FOR BRADYARRHYTHMIAS
Pacemaker insertion
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WHAT IS THE TYPICAL MANAGEMENT FOR TACHYARRHYTHMIAS
Drugs Sinus tachycardia
Metoprolol tartrate verapamil
Paroxysmal SVT Adenosine Verapamil
VT Lignocaine Amiodarone Sotalol Flecainide Atenolol/metoprolol
![Page 15: W EEK 8: O N THE BUSES. Name the coronary arteries Is this a left-dominant or right-dominant heart? Name the branches off the aortic arch.](https://reader033.fdocuments.us/reader033/viewer/2022051216/5697c0041a28abf838cc42f0/html5/thumbnails/15.jpg)
DURING WHAT ARRHYTHMIAS IS IT SUITABLE TO SHOCK A PATIENT?
Sustained VT AF VF
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WHAT ARE THE TYPICAL SYMPTOMS OF ANXIETY
Neurological•Dizziness•Headache•Trembling•Twitching•Shaking•parasthesia
Cardiovascular•Palpitations•Tachycardia•Flushing•Chest discomfort
GIT•Nausea•Indigestion•Diarrhoea•Abdominal distress
Respiratory•Hyperventilation•Breathing difficulty•Air hunger
Cognitive•Fear of dying•Difficulty concentrating•‘mind going blank’•hypervigilance