electrocardiography
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| ECG or EKG | show 🗑
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| 5 reasons for ecg | show 🗑
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| 4 chambers of the heart | show 🗑
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| show | deoxygenated blood enters the heart here
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| show | oxygenated blod leaves the heart here and is delivered cells, tissues and organs of the body
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| Sinoatrial node | show 🗑
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| show | contraction of cardiac cells
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| repolarazation | show 🗑
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| show | heart relaxes breifly
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| show | a flatline is present when there is no current flowing in the heart
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| waves | show 🗑
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| P, QRS, T | show 🗑
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| show | represents atrial depolarazation and is recorded as a positive deflection
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| show | represents ventricular depolarazation
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| T wave | show 🗑
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| show | 0.8 seconds
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| show | 12 lead single channel ecg- record each lead either manually or automatically on a single strip of paper that requires the paper to be cut and mounted
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| multichannel electrocardiograph | show 🗑
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| 3 channel | show 🗑
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| show | is heat and pressure sensitive
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| show | skin is a pore conductor of electroclyte, there are various types of conductive current substances applied with each electrode to pick up the electrical current. Gels, Paste, Lotions or presaturated pads
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| Sensors or electrodes | show 🗑
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| show | consists of 10 sensors that record 12 leads of the hearts electrical activity from different angles allowing for a through three dimensional interpretation of its activity
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| show | given off by the heart are picked up by the electrodes and conduct into the machine through lead wire.
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| Placement of leads | show 🗑
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| Standard limb or bipolar leads | show 🗑
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| Bipolar leads | show 🗑
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| LEAD 1 | show 🗑
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| LEAD 2 | show 🗑
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| show | records the electrical activity between the la and ll
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| Rhythm strip | show 🗑
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| Augmented Leads | show 🗑
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| aVR | show 🗑
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| aVL | show 🗑
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| aVF | show 🗑
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| show | these are unipolar leads v1-v6. record the hearts electrical impulse from central point within the heart to one of six predesignated positions on the chest wall where an electrode is attached
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| v1 | show 🗑
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| show | 4the intercostals space to the left of the sternum
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| show | 5th intercostals space at the left midclavicular line
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| show | midway between v2 and v4
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| show | horizontal to v4 at the left midaxillary line
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| show | horizontal to v4 at the left anterior axillary line between v4 and v6
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| Standaraztion of the machine | show 🗑
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| Somantic Tremor Artifacts | show 🗑
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| show | caused by electrical interference appears as a serier of small regular peaks electricity present in medical wquipment or wires in the area can leak a small amt of energy into the room in which the ecg is being recorded, causes, improper grounding.
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| wandering baseline | show 🗑
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| interrupeted baseline | show 🗑
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| Normal sinus rhythm | show 🗑
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| show | normal limits for adult
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| bradycardia | show 🗑
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| show | 100 beats per minute or more
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| Premature atrial contraction | show 🗑
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| show | seen in healthy and cardiac patients characterized by its unprovoked sudden onset and abrupt termination heart rate is regular and ranges between 160-250 beats per min
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| atrial fibrillation | show 🗑
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| hypertension | show 🗑
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| Premature ventricular contractions | show 🗑
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| Ventricuar tachycardia | show 🗑
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| show | is lefe threatening and can rapidly deteriorate infibrillation and cardiac standstill
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| show | an electrical device that applies counter shocks to heart through electrodes or pads placed on the chest wall, purpose is to convert cardiac arrhythmia into normal sinus rhythm used in emergency situation
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| show | portable continuos recording of cardiac activity for a 24 hour period, helps to diagnose cardiac arrhythmias by correlatin them with a patients symptoms
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| show | 4th intercostal right of sternum A (black)
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| mV5 (holter monitor) | show 🗑
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| show | left clavicle, lateral to sternum c (brown)
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| mV5 (holter monitor) | show 🗑
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| ground (holter monitor) | show 🗑
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| diary of holter monitor | show 🗑
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| treadmill stress test or exercse tolerance ecg | show 🗑
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| show | simlilar to the treamill stress test in that the patient has an ecg tracing while exercising on the treadmill after having an injection of a radioactive substance such as thallium
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| PTCA | show 🗑
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| show | coronary artery bypass graft or cabbagge
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