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blood & heart
Question | Answer |
---|---|
what is the function of the heart | propels blood and maintain blood pressure. |
what is the function of vessels | distribute blood |
what are the vessels of the body | arteries,capillaries,veins |
what is the function of blood | transports oxygen,carbon dioxide,blood cells and removes waste products |
what is the job of the arteries | carries blood away from the heart |
what is the job of the capillaries | permites the exchange of blood b/w vessels |
what is the job of the veins | carries blood to the heart |
what 2 circuits does blood flow in | pulmonary and systemic |
describe the size of the heart | size of a clench fist |
what is the apex of the heart | inferior pointed tip |
what is the base of the heart | superior surface of the heart |
what is the most anterior part of the heart | right atrium and right ventricle |
what region is the heart located at | mediastinum |
what is the normal heart rate | 70-80bpm |
what is a cardiac cycle | every 0.8 seconds |
what is a full cardiac cycle | 1 heart beat |
what is bradycardia | under 60 bpm |
what is trachycardia | over 100 bpm |
what is a electrocardiogram | record of the current across the heart |
what does the P wave measures | atria contracting |
what does the QRS wave measures | ventricle contracting |
what does the T wave measures | ventricles relaxed |
what is angiography | minimally invasive medical test that helps doctors diagnose and treat medical conditions |
what machines does angio uses | uses constrast material & CT, MRI,X-ray to produce pictures of major blood vessels throughout the blood. |
how is the catheter inserted into the body | into a vein through a small incision |
when is the constrast injected into the body | once the catheter is guided to the area being examined.Contrast is injected through the tube & images are captured using fluoroscopy |
what can angio be use for | aneurysms,atherosclerosis,stent evaluation,surgical guidance,planning for surgery,blood clots |
what is the patient prep | no patient prep |
who inserts an IV line and what is it used for | nurse,for a sedative |
where is the catheter inserted at | area of the groin |
who makes the small incision for the catheter | the radiologist |
when are the x-rays taken | after the contrast is injected through the catheter & reaches the blood vessels being studied-several x-rays are taken |
how is the incision site closed | by placing pressure on the area for approx.10 minutes. |
when is the IV removed | after the radiologist determines that all the necessary images have been obtained |
how long can an catheter angiogram take | can be perform in less than 1hr,or may last for serval hours |