Hamad At The Cooperative

Hamad At The Cooperative

1. Causes of Unconsciousness

   • Trauma
   • Hemorrhage
   • Drug overdose
   • Alcohol poisoning
   • Low blood sugar
   • Low blood pressure
   • Transient ischemic attack
   • Arrhythmia
   • Dehydration

2. Heart Function

   • Right Side
     • Receives deoxygenated blood from entire body
     • Pumps this blood to lungs for oxygenation
   • Left Side
     • Receives oxygenated blood from lungs
     • Pumps this blood to the entire body
   • Cardiac Action Potential Generation

3. Steps of Performing CPR

   • Check scene for safety and use PPE
   • Call 911
   • Place person on their back and open their airway
   • Check if person is breathing
   • Perform 30 chest compressions
   • Perform 2 rescue breaths
   • Repeat above steps

4. Causes of Syncope

   • Arrhythmia
   • Low blood pressure
   • Orthostatic hypotension
   • Extreme pain or fear
   • Pregnancy
   • Dehydration
   • Exhausation

5. Electrocardiogram

   • Records electrical activity of the heart
   • Why is ECG performed?
     • Arrhythmia
     • Coronary artery disease
     • History of MI
     • Check function of artificial pacemaker
   • Components of an ECG
     • P wave - atrial depolarisation
     • QRS complex - ventricular depolarisation
     • T wave - ventricular repolarisation
     • PR interval - initial depolarisation of atria to initial depolarisation of ventricle
     • QT interval - 1st ventricular depolarisation to last ventricular repolarisation

6. Physiological Differences b/w Skeletal & Cardiac Muscle

7. Conduction Pathway of the Heart

8. Sick Sinus Syndrome

   • Causes
     • Coronary artery disease
     • Heart failure
     • A-fib
     • History of MI
     • Hypothyroidism
     • Hyperkalemia
   • Symptoms
     • Dizziness
     • Chest pain
     • SOB
     • Fainting
   • Treatment
     • Change drug regimen
     • Blood thinners
     • Artificial pacemaker

9. Anti-Arrhythmics

   • Class 1 - Na+ Channel Blockers
     • Class 1A - quinidine, procainamide & dispyramide
     • Class 1B - lidocaine & mixelitine
     • Class 1C - flecainide & propafenone
   • Class 2 - Beta Blockers
     • Propanolol
     • Metoprolol
     • Atenolol
   • Class 3 - K+ Channel Blockers
     • Amiodarone
     • Sotalol
     • Dofetilide
     • Ibutilide
   • Class 4 - Ca2+ Channel Blockers
     • Verapamil
     • Diltiazem

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