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Patient Evaluation

Electrocardiogram

QuestionAnswer
Electrocardiogram (EKG) Equipment/Oscilloscope - provides a continuous visual image of electrical activity.
Electrocardiogram (EKG) Equipment/Oscilloscope - an oscilloscope is a device that displays rapid changes in voltage as moving line on a phosphorescent screen.
Electrocardiogram (EKG) Equipment/Oscilloscope/Converters - special converters can be attached to an oscilloscope so that mechanical vibrations, pressure waves, and other forms of energy can be transformed into electrical impulses and displayed.
Electrocardiogram (EKG) Electrocardiograph - instrument used to for recording the electrical activity of the heart.
Electrocardiogram (EKG) Holter Monitor - a portable version of an electrocardiograph that is worn under the patient clothes by the patient for 24-48 hour period to detect cardiac arrhythmias.
Electrocardiogram (EKG) Holter Monitor/Electrodes - chest electrodes are connected to the monitor and cardiac activity is continually monitored while the patient goes about his usual daily activities.
Electrocardiogram (EKG) Holter Monitor/Electrodes/Time - the monitor is worn for 24-48 hours continually as instructed b a physician.
Electrocardiogram (EKG) Holter Monitor/Electrodes/Recordings - the recording is scanned by an electroscanner and a hard copy of ECG is produced by a physician.
Electrocardiogram (EKG) Holter Monitor/Electrodes/Usage - a holter monitor is used to detect ECG abnormalities that may occur over an extended period of time.
Electrocardiogram (EKG) Holter Monitor/Electrodes/Evaluation - can be used to evaluate the effectiveness of anti-arrhythmias drugs and to associate the occurrence of chest pain with stress or physical activity.
Electrocardiogram (EKG) Electrophysiology of the Heart/SA NODE - the electrical impulse is generated by the SA Node (pacemaker).
Electrocardiogram (EKG) Electrophysiology of the Heart/ P- Wave - the wave of depolarization moves through the atria causing contraction (P wave)
Electrocardiogram (EKG) Electrophysiology of the Heart/PR- Interval - the impulse is received by the AV Node where it is delayed for a short time (PR-interval)
Electrocardiogram (EKG) Electrophysiology of the Heart/QRS Complex - the stimulus is the sent through the Bundle of his, and right and left bundle branches.to Purkinjie fibers = - Ventricular depolarization and contractions = QRS Complex
Electrocardiogram (EKG) Electrophysiology of the Heart/T- Wave - after a short delay (ST-segment) the heart repolarize (T-wave)
Electrocardiogram (EKG) ECG Electrodes/Leads - electrodes are placed on the arms and legs = limb leads - electrodes are placed on the chest around the heart = (precordial leads)
Electrocardiogram (EKG) ECG Electrodes/Leads/Electrode Defined - an object placed on the skin to conduct electric current from the body to a monitoring or measuring device.
Electrocardiogram (EKG) ECG Electrodes/Leads/Leads Defined - a positive (+) and negative (-) electrode that allows electrical current to flow.
Electrocardiogram (EKG) ECG Electrodes/Leads/Impulse Movement Upward - when the impulse of the heart moves toward the positive electrode = an upward defection is made on ECG paper.
Electrocardiogram (EKG) ECG Electrodes/Leads/Impulse Movement Downward - movement of the impulse away from the positive electrode = a downward deflection
Electrocardiogram (EKG) ECG Electrodes/Leads/# of Leads - there 12 leads used - six limb leads - six precordial leads = 10 electrodes
Electrocardiogram (EKG) ECG Electrodes/Leads/Limb Leads/Lead #1 - = Left arm= (positive) - = Right arm = (negative)
Electrocardiogram (EKG) ECG Electrodes/Leads/Limb Leads/Lead #2 -= left leg =( positive) - = right arm= ( negative)
Electrocardiogram (EKG) ECG Electrodes/Leads/Limb Leads/Lead#3 - = left leg = (positive) - = left leg= (negative)
Electrocardiogram (EKG) ECG Electrodes/Leads/Limb Leads/AVR - = right arm = (positive) - = everything else = (negative)
Electrocardiogram (EKG) ECG Electrodes/Leads/Limb Leads/AVL - = left arm = (positive) - = everything else = (negative)
Electrocardiogram (EKG) ECG Electrodes/Leads/Limb Leads/AVF - = left leg(foot) = (positive) - = everything else = (negative)
Electrocardiogram (EKG) ECG Electrodes/Leads/Limb Leads/AVR/Hint - AVR is the only limb that produces an upside down (negative) pattern. - the electrical impulse moves downward and toward the left through the heart. - any positive electrode placed above and to the right (AVR) will show inverted pattern.
Electrocardiogram (EKG) Chest Electrodes - each chest lead is positive and is placed directly over the heart in six positions around the heart. - these positions project through the heart for 3RD dimensional view
Electrocardiogram (EKG) Chest Electrodes/V1 - 4th intercostal space - right side of sternum -right heart
Electrocardiogram (EKG) Chest Electrodes/V2 - 4th intercostal space - left side of sternum - right heart
Electrocardiogram (EKG) Chest Electrodes/V3 - between v2 and v4 - on left side - ventricular septum
Electrocardiogram (EKG) Chest Electrodes/V4 - 5th intercostal space - left mid-clavicular line - ventricular septum
Electrocardiogram (EKG) Chest Electrodes/V5 - between v4 and v6 - on left side - left heart
Electrocardiogram (EKG) Chest Electrodes/V6 - 5th intercostal space - left mid-axillary line - left heart
Electrocardiogram (EKG) Interpretation/Management Abnormalities/Rate/Normal - 60-100 bpm
Electrocardiogram (EKG) Interpretation/Management Abnormalities/Rate/Bradycardia - less than 60 bpm
Electrocardiogram (EKG) Interpretation/Management Abnormalities/Rate/Tachycardia - greater than 100 bpm
Electrocardiogram (EKG) Interpretation/Management Abnormalities/Rate/Flutter - greater than 200
Electrocardiogram (EKG) Interpretation/Management Abnormalities/Rate/Fibrillation - too fact to count
Electrocardiogram (EKG) Interpretation/Management/Estimate HR/ R-wave - the rate of an ECG can easily be estimated by counting two R-wave.
Electrocardiogram (EKG) Interpretation/Management/Estimate HR/ R-wave/3-5box - if the two R-wave are between 3 and 5 boxes - = the rate is normal 60-100
Electrocardiogram (EKG) Interpretation/Management/Estimate HR/ R-wave/3-5box/Close - if the two R- wave are closer than 3 boxes (15 small squares) = the rate is greater than 100 = Tachycardia
Electrocardiogram (EKG) Interpretation/Management/Estimate HR/ R-wave/3-5box/Wider - if the R-wave are wider than 5 boxes(25 small squares) = the rate is less than 60 = Bradycardia
Electrocardiogram (EKG) Interpretation/Management/Estimate HR/Formula - HR = 300/#of large boxes or 1500/# of small boxes
Electrocardiogram (EKG) Interpretation/Management/Estimate HR/ Formula/Example - R-wave between 4 large boxes 300/4 = 75bpm = normal
Electrocardiogram (EKG) Interpretation/Management/Normal Sinus Rhythm(NSR) - normal rate - no skips - no extra beats =( No treatment)
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/Sinus Arrhythmia - Sinus arrhythmia with irregular rate - (Treatment) = any other symptoms
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/Sinus Tachycardia - sinus rhythm with rate greater than 100bpm - Treatment = Oxygen
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/Sinus Bradycardia - sinus rhythm with rate less than 60 bpm - Treatment = Oxygen = Atropine
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/Premature Ventricular Contractions (PVC) - (PVC) - Treatment = Oxygen = Lidocaine
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/Multifocal Premature Ventricular Contractions - PVC - Treatment =Oxygen =Lidocaine
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/Ventricular Tachycardia - ventricular rhythm with rate greater 100 bpm - Treatment = (No Pulse) = Defibrillate = (Pulse) = Lidocaine & Cardiovert
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/Ventricular fibrillation - V-fib completely irregular = Treatment = Defibrillate
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/Asystole - Treatment = confirm in 2 leads = Epinephrine = Atropine = CPR
Electrocardiogram (EKG) Interpretation/Management/Heart Blocks/1st Degree - PR- interval greater than .20 secs (measured from beginning of P- wave to beginning QRS) - sign of ischemia or digitals - Treatment = Atropine
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/2nd Degree - irregular rhythm - normal P-wave - QRS complex is missing - Treatment = Atropine = Pacemaker
Electrocardiogram (EKG) Interpretation/Management/Arrhythmias/3rd Degree - atrial rate = greater 60 bpm - ventricular rate = less than 40 - PR Interval = can't be determined - QRS complex = will be widened -Treatment = electrical pacemaker
Electrocardiogram (EKG) Interpretation/Management/Axis/Defined - the axis of an ECG measures the net direction of all the electricity through the heart during contraction.
Electrocardiogram (EKG) Interpretation/Management/Axis/Movement - the electrical impulse begins in upper right corner. (SA NODE) the right atria - which moves down and across the heart to the left.
Electrocardiogram (EKG) Interpretation/Management/Axis/Direction - normal axis = down and to the left
Electrocardiogram (EKG) Interpretation/Management/Axis/2 Factors - two factors - hypertrophy - infarction
Electrocardiogram (EKG) Interpretation/Management/Axis/2 Factors/Hypertrophy - increases electrical activity - axis will shift toward hypertrophy
Electrocardiogram (EKG) Interpretation/Management/Axis/2 Factors/Infarction - dead tissue
Electrocardiogram (EKG) Interpretation/Management/Axis/Ischemia - reduced blood flow to tissue -( ECG ) indicated by depressed T- wave
Electrocardiogram (EKG) Interpretation/Management/Axis/Injury - acute damage tissue - (ECG) elevated ST- segment
Electrocardiogram (EKG) Interpretation/Management/Axis/Infarction - necrosis or death of tissue - end result of ischemia and injury - may be recent or old - significant Q-wave
Electrocardiogram (EKG) Interpretation/Management/Axis/Q-wave Significance - 1/2 the height of R-Wave - Q-Waves( 1) small square (0.04mm)
Electrocardiogram (EKG) Interpretation/Management/Axis/Hyperkalemia - will cause elevated or spiked T-waves
Electrocardiogram (EKG) Interpretation/Management/12 Lead ECG/ Normal Charact.(AVR) - aVR- V1 leads = predominately negative QRS complex.
Electrocardiogram (EKG) Interpretation/Management/12 Lead ECG/ Normal Charact.(T-Wave) - T-wave = upright (positive) in leads 1 & 2
Electrocardiogram (EKG) Interpretation/Management/12 Lead ECG/ Normal Charact.(R-Wave) - R- Wave in V1 = small and increase in each chest lead as you approach V5
Created by: sukar