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Cardiac Patho
Stack #15115
Question | Answer |
---|---|
#1 cause of death in US | CAD |
What is CAD? | Causes angina, MI, dysrhythmias, HF, sudden death. |
Narrowing of coronary arteries | What is atherosclerosis? |
Hardening of the arteries | What is arteriosclerosis? |
Occlusion resulting in MI or sudden death. | CAD/ clot formation |
ECG-P wave | What is atrial depolarization? |
Sodium moves into cell/ Potassium moves out of the cell | Atrial depolarization |
AV conduction. measure of time, onset of atrial activation to the onset of ventricular activation. | What is ECG (P-R interval)? |
Early ventricular repolarization or plateau (Ca enters) | What is ST Segment? |
Ventricular repolarization (Na-out/K-in) | What is T Wave? |
Predictable, luminal narrowing/atherosclerosis | What is Stable Angina? |
What is the Q-T Interval? | Total ventricular activity(depolarization/repolarization) |
Uses ALL oxygen (from the coronary arteries) | What is the heart? |
Can only increase oxygen supply by vasodilate/increase heart rate | What is the heart? |
Independent intrinsic timer | Artrial/ventricular muscel cells. |
Alpha fiber (increase rate), Beta fibers (increase force of contraction) | What is the sympathetic nervous system? |
Transient chest paint due to myocardial ischemia (3-5min.) | What is Angina Pectoris? |
Sum of all ventricular depolarization | What is QRS complex? |
Advanced ischemic heart disease, unpredictable | What is Unstable Angina? |
Vasospasm (occurs during REM sleep or rest) | What is Prinzmetal Angina? |
Onset from stress, exercise, last 5 min., NTG relieves pain, less severe. | Angina or MI? |
Onset during sleep/activity, pain not relieved, LOC, SOB, pain, diaphoresis. | Angina or MI? |
Men experience crushing chest pain, women have gastric pain | What is Angina? |
Diseases of the myocardium. | What is Cardiomyopathies? |
Dilated, Hypertrophic & Restrictive. Possibly secondary and most are idiopathic. | What is Cardiomyopathies? |
Stenonsis or Regurgitation. Affects mostly mitral or aortic. Decreased CO & murmurs. | Valvular Heart Disease |
S/s fever, murmurs & petechiae | What are cardiac infections? |