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23 Cards in this Set
- Front
- Back
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Pulse
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The opening and closing of heart valves.
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Where can a pulse be felt (which arteries)?
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Temporal, facial, common carotid, brachial, radial, femoral, popliteal, posterior tibial, dorsalis pedis arteriess.
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Apical Pulse
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The number of heart beats per minute.
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Radial Pulse
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Pulse in the radial artery. May be slightly lower than the apical pulse.
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Pulse Deficit
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The difference between the apical and radial pulse. Ideally close to 0.
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What does a large pulse deficit indicate?
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The presence of a heart abnormality.
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What does an electrocardiogram show?
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The electrical impulses in the heart that indicate how the signal passes in the heart.
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P Wave
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Atrial depolarization.
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QRS Complex
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Ventricular depolarization.
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T Wave
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Ventricular repolarization.
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U Wave
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Rare, small wave after the T Wave. Thought to be the papillary muscles repolarizing.
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Explain in detail how the impulse passes through the heart.
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The SA node generates the impulse and atrial excitation begins. Impulse is delayed at the AV node. Impulse passes to the heart apex and ventricular excitation begins. ventricular excitation complete.
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Junctional Rhythm
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Non-functioning SA node (no pacemaker) so AV node acts as the pacemaker and you have a slower heart rate.
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Ventricular Fibrillation
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Chaotic rhythm. Seen in electrical shock and myocardial infarctions.
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2nd Degree Heart Blockage
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Some signals not getting through the AV node.
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What are the two instruments needed the measure blood pressure?
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Sphygmomanometer and stethoscope.
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Where does the cuff wrap around and where does the bell of the stethoscope get placed (what artery)?
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Brachial artery.
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Systolic Pressure
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Pressure in arteries when ventricles are in systole (contract). Higher of the two numbers.
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Diastolic Pressure
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Pressure in arteries when ventricles are in diastole (relax). Lower of the two numbers.
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Pulse Pressure
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Systolic pressure-diastolic pressure.
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Korotkoff Sounds
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What you hear when taking blood pressure.
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How much should you open the valve when taking blood pressure?
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Enough so that the pressure in the cuff drops at 2mm Hg per second.
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When should you hear the Korotkoff sounds?
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When the pressure is between the systole and diastole.
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