Question | Answer |
Allen test | A measurement of radial/ulnar patency; either the radial ulnar artery is digitally compressed - blood has been forced out of hand by clenching into fist; failure of blood to diffuse into hand when opened indicates artery not compresed is occluded |
Angiogram | Radiography of arteries after injection of radiopaque contrast material |
Arterial blood gas | The direct electrode measurement of partial pressure of oxygen and carbon dioxide in the blood as well as pH and chloride levels |
Bone marrow biopsy | Process of removing bone marrow from living patients for macroscopic diagnostic examination |
Cardiac catherization | A procedure where catheter passed into heart through a vein or artery to withdraw samples of blood, measure pressure in heart's chambers or great vessels, inject contrast media, used to diagnose & eval of congenital, rheumatic & coronary artery lesions & |
Cardiac isoenzymes | Chemicals that catalyze same reaction but may be differentiated by variations in physical properties, such as isoelectric point, electrophoretic mobility, kinetic parameters, or modes of regulation. CPK, LDH, AST, Troponin |
Cardiac stress test | Use of treadmill on patient while connected to a cardiac event monitor to measure cardiac activity while body is under physical activity |
Clotting studies | Tests used to determine the speed of various plasma components involved in the clotting process, PT, PTT, Factor VIII assay, platelet count, fibrinogen levels |
Doppler | A diagnostic instrument that emits an ultrasonic beam into body; the ultrasound reflected from moving structures changes its frequency. Of diagnostic value in peripheral vascular and cardiac disease |
Electrocardiogram | Graphic record of cardiac action |
Echocardiogram | The use of ultrasound in the investigation of the structure and motion of the heart and great vessels and diagnosis of cardiovascular lesions |
Erythrocytic sedimentation rate | The rate of settling of red blood cells in anticoagulated blood; increased rates are often associated with anemia or inflammatory states |
Pulse oximetry | A spectrophotometric device that noninvasively estimates saturation of arterial oxyhemoglobin (SaO2) by use of selected wavelengths of light |
Sphgmomanometer | An instrument for measuring arterial blood pressure indirectly, consisting of an inflatable cuff, inflating bulb, and a gauge showing the blood pressure |
Transesophageal echo | Recording of the echocardiogram from a swallowed transducer |
Ultrasonography | The location, mesurement, delineation of deep structures by measuring reflection of transmission high-frequency or ultrasonic waves. Computer calculation of the distance to the sound-reflecting or absorbing surface - gives a two-dimensional image |
Venogram | Radiograph of opacified veins |