circulatory diagnostic tools Flashcards
coronary angiography
maps coronary arteries
echocardiogram
determines cause of stroke and blood clots
exercise electrocardiogram
determines cause of chest pain, irregular heartbeats, dizziness, fatigue
holter monitor
determines cause of rhythm disturbances
cardiac catheterization
takes internal x rays of heart to investigate problems
angioplasty
- treatment option for arteriosclerosis
- tube inserted into clogged artery and tiny balloon inflates to force artery open
- sometimes, vascular stent is inserted during procedure to hold vessel open
coronary bypass
healthy artery/vein from another part of body (ex: leg) is used to create new pathway for blood to flow around blockage
organ transplants
medical procedure where one organ removed from one body and placed into another to replace damaged organs
xenotransplants
non-human species, such as graft, used to treat medical conditions in humans
artificial hearts
- made of titanium and plastic, powered by external battery can address over-demand for heart transplants
nanotechnology
use of microscopic structures to detect changes in cells/molecules
electrocardiogram (ECG)
- tracings are made from recorded voltage changes
- diagnose heart problems, determines if heart is generating signals with normal frequency, strength
P WAVE: monitors atrial contraction
QRS WAVE: records ventricular contractions
T WAVE: signals ventricles have recorded