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27 Cards in this Set
- Front
- Back
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What are the NORMAL SINUS RHYTHM?
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R-R interval is REGULAR
PR interval=0.12-0.20 Atrial rate=60-100 BPM |
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What is expected with SINUS BRADYCARDIA?
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PR interval .12 or GREATER
Atrial Rate BELOW 60 BPM |
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What is expected with SINUS TACHYCARDIA?
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PR interval .12 or GREATER
Atrial rate 101-150 |
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What in expected with Sinus Block?
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COMPLETE ABSENCE OF PQRST
P waves return ontime |
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What is expected with PREMATURE ATRIAL BEAT?
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EARLY P wave
W/ or W/O QRS if it does the PR interval is .12 or resets the rhythm (p's don't return ontime |
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What is expected with ATRIAL TACHYCARDIA? (paroxysmal)
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Atrial rate 151-250 BOM
P-P interval Redgular R-R interval regular or Irregular PR interval .12 or Greater |
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What is expected with ATRIAL FLUTTER?
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Atrial rate 251-400 BPM
P-P interval regular R-R interval regular or irregular Saw-toothed baseline |
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What is expected with ATRIAL FIBRILLATION?
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UNIDENTIFIABLE P waves
Irregular R-R interval Atrial rate GREATER than 400-can't calculate |
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What are the ATRIOVENTRICULAR VALVES?
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TRICUSPID
MITRAL |
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What are the SEMILUNAR VALVES?
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AORTIC
PULMONIC |
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What do the CHRONTROPIC EFFECT CHANGE?
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Change in HR
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What does the INOTROPIC EFFECT CHANGE?
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Change in MYOCARDIAL CONTRACTILITY
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What feeds the Right Coronary Artery?
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SA, AV, Right Atrium, Right Ventrical
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What does the Left Main Coronary Artery feed?
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BIG-Devides Left Anterior Decending, Anterior wall of Left Ventrical
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If an MI happens where is it most likely to effect?
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Left Anterior
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What is PRELOAD?
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The force exerted by the blood on the walls of the ventricles at the end of diastole "filling up" fluid volume overload.
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What is AFTERLOAD?
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Pressure or resistance against witch the ventricles must pump "back out into system"
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What is NORMAL Cardiac Output?
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4-8L
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What is CARDIAC INDEX? Whats NORMAL?
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Amount of blood ejected from Left ventrical each minute per square meter of BSA. 2.8-4.2 L/min
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What are the phases in Cardiac Action Potential? What happens in each phase?
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Phase 0-depolarization-rapid influx of NA into cell K moves out
Phase 1-influx of Ca Phase 2-plateau, Ca and NA going out of cell Phase 3 Repolarization Ca and Na stop but K accelerates Phase 4- resting phase, Active transport of K in cell and Na out of cell |
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What is P? How is P measured?
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Atrial Depoerization (SA node has fired) Measure from START of P to end of P
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What is PR interval? How is it measured? Normal finding?
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Depolerization to R & L atrium. From start of P to start of Q Normal=.12-.20
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What is the QRS complex? How is it measured? What is normal?
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Ventrical depolariziation. Begingin of Q to end of S
Normal= .10 |
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What is ST segment? How is it measured? What is normal?
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early repolarization of R & L Ventrical. End of S to end of T
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How do you determain ATRIAL rate?
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Measure top of P to top of next P then 1500 / # of boxes
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How do you determain VENTRICAL RATE?
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Top of one Q to the top of another Q. 1500/ # of boxes
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REMEMBER...IF Q's & P's march out you have a REGULAR RATE.
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REMEMBER... if IRREGULAR count R's in a 6 second strip and * by 10 gives you an ESTAMATE of HR
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