Medical Terminology Chapter 7 Diagnostic Test and Procedures
Terms
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- auscultation
- physical examination method of listening to sounds within body with aid of a stethoscope
- bruit
- noise; abnormal heart sound caused by turbulence within
- gallop
- abnormal heart sound that mimics gait of a horse; related to abnormal ventricular contraction
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electrocardiogram
(ECG or EKG) - electrical picture of heart represented by positive and negative deflections on graph labeld with letters, P, Q, R, S, and T, corresponding to events of cardiac cycle
- stress electrocardiogram
- ECG of heart recorded during the induction of controlled physical exercise using a treadmill or ergometer; useful in detecting conditions such as ischemia and infarction
- Holter ambulatory monitor
- portable electrocardiograph worn by patient that monitors electrical activity of heart over 24 hours - useful in detecting periodic abnormalities
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intracardiac electrophysiological study
(EPS) - invasive procedure involving placement of catheter-guided electrodes within heart to evaluate and map the electrical conduction of cardiac arrhythmias; intracardiac catheter ablation may be performed at the same time to treat the arrhythmia
- intracardiac catheter ablation
- use of radiofrequency waves sent through a catheter within the heart to treat arrhythmias by selectively destroying myocardial tissue at sites generating abnormal electrical pathways
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magnetic resonance aniography
(MRA) - magnetic resonance imaging of heart and blood vessels for evaluation of pathology
- nuclear medicine imaging of heart
- radionuclide organ imaging of heart after administration of radioactive isotope to visualize structures and analyze functions
- myocardial radionuclide perfusion scan
- scan of heart made after an intravenous injection of isotope that is absorbed by myocardial cells in proportion to blood flow throughout heart
- myocardial radionuclide perfusion stress scan
- nuclear scan of heart taken after the induction of controlled physical exercise via treadmill or bicycle or administration of pharmaceutical agent that produces the effect of exercise stress in patients unable to ambullate
- positron emission tomography (PET) scan of heart
- use of nuclear isotopes and computed tomography techniques to produce perfusion images and study the cellular metabolism of heart
- radiology
- x-ray imaging
- angiography
- x-ray of blood vessel after injection of contrast medium
- angiogram
- record obtained by angiography
- coronary angiogram
- x-ray of blood vessels of heart
- arteriogram
- x-ray of particular artery
- aortogram
- x-ray of aorta
- venogram
- x-ray of vein
- cardiac catheterization
- induction of flexible, narrow tube or catheter through a vein or artery into heart to withdraw samples of blood, measure pressures within the heart chambers or vessles, and inject contrast media for fluoroscopic radiography and cine fil imaging of chambers of the heart and coronary arteries
- left heart catheterization
- x-ray of left ventricular cavity and coronary arteries
- right heart catheterization
- measurement of oxygen saturation and pressure readings of right side of heart
- ventriculogram
- x-ray visualizing the ventricles
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stroke volume
(SV) - measurement of the amount of blood ejected from a ventricle in one contraction
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cardiac output
(CO) - measurement of the amount of blood ejected from either ventricle of heart per minute
- ejection fraction
- measurement of volume percentage of left ventricular contents ejected with each contraction
- sonography
- sonographic imaging
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echocadiography
(ECHO) - recording of sound waves through the heart to evaluate structure and motion
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stress echocardiogram
(stress ECHO) - echocardiogram of heart recording during the induction of controlled physical exercise via treadmill or bicycle or administration of a pharmaceutical agent that produces the effect of exercise stress in patients unable to ambulate
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transesophageal echocardiogram
(TEE) - echocardiographic image of heart after placement of an ultrasonic transducer at end of endoscope inside the esophagus
- Doppler sonography
- ultrasound technique used to evaluate blood flow to determine the presence of a deep vein thrombosis (DVT) or carotid insufficiency, or flow through the heart, chambers, valves, etc
- intravascular sonography
- ultrasound images made after a sonographic transducer placed at tip of catheter within a blood vessle