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Which side of the heart carries deoxygenated blood?
The right side
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Which side of the heart carries oxygenated blood?
The left
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What is the only artery that carries deoxygenated blood?
The Pulmonary Artery
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What takes blood away from heart?
Arteries
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What brings blood back to heart
Veins
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Which atrium do the inferior and superior vena cava's meet in?
The right atrium
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What is the strongest chamber in the heart?
Left Ventricle
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What is automaticity?
The hearts ability to create own electrical impulses
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What is the SA NODE?
- Sinoatrial Node
- Pace maker of the heart
- 60-100 BPM at resting
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What is the AV NODE?
- Atreuiventriculer Node
- Delays electrical impulses
- 40-60 BPM at resting
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What is Bundle of His?
Divides into left and right bundle branch then to purkinje fibers
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What do the coronary arteries do?
Supply blood flow to the heart muscle
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What does the Right Coronary Artery do?
Supplies blood flow to the right side
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What does the Left Coronary Artery do?
Splits to the LAD and the LCA
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In which phase do the coronary arteries fill up?
Diastolic Phase
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What is the function of the red blood cell?
- Supplies oxygen
- Erythrocyte
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What is the function of the white blood cell?
- Fights infection
- Leukocyte
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What is plasma?
- Fluid that your blood is in
- majority of your blood is plasma
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What is atherosclerosis?
- Materials build up inside vessels
- this decreases or obstructs blood flow
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What is Angina Pectoris?
- Chest pain
- Pain in the chest that occurs when the heart does not recieve enough oxygen
- Typicalls crushing or squeezing pain
- Rarely last longer than 15 minutes
- Can be difficult to differentiate from heart attack
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What is a heart attack?
- Acute myocardial infarction
- Pain signals death of cells
- Opening the coronary artery within the first hour can prevent damage
- Immediate transport is essential
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What are some signs and symptoms of heart attack?
- Weakness, nausea, sweating without obvious cause
- Chest paint/discomfort
- pain in lower jaw, arms, back, abdomen, or neck
- Sudden arrhythmia with syncope
- Shortness of breath of dyspnea
- Pulmonary Dema
- Sudden Death
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What percent of AMI patiends do not reach hospital?
40%
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What is Arrythmia/Dysrythmias
- Abnormal heart beat
- Bradycardia
- Ventricular Tachycardia "VT"
- VT still has pulse
- Pulseless VT does not
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What is congestive heart fauilure?
- Occurs when ventricles are damaged
- Heart tries to compensate
- Increased heart rate
- Enlarged left bentricle
- Fluid backs up into lungs or body as heart fails to pump
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What is the reason for asprin?
- Prevents clots from becoming bigger
- normal dosage is 162-324mg
- Baby asprin is 81mg
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What are the forms of nitroglycerin?
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What are the effects of Nitroglycerin?
- Relaxes blood vessel walls
- Dilates coronary arteries
- Reduces workload of heart
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What are some contraindications with nitro?
- Systolic BP below 100mmHg
- Head injury
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Nitroglycerin Potency
- Loses strength overtime
- Specially if exposed to light
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What happens when nitroglyverin tablets lose potency?
- The patient may not feel the fizzing sensation
- May not experience the burning sensation and headache
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