M3B Cardiovascular Lab Tests and Diagnostic Procedures Flashcards
BNP test
measurement of BNP (brain natriuretic peptide) in blood
cardiac biomarkers
chemicals are measured in the blood as evidence of a heart attack
lipid tests (lipid profile)
measurement of cholesterol and triglycerides in a blood sample
lipoprotein electrophoresis
lipoproteins (combinations of fat and protein) are physically separated and measured in a blood sample
angiography
x-ray imaging of blood vessels after injection of contrast material
computed tomography angiography (CTA)
three-dimensional x-ray images of the heart and coronary arteries using CT
digital subtraction angiography (DSA)
video equipment and a computer produce x-ray images of blood vessels
electron beam computed tomography (EBCT/EBT)
electron beams and CT identify calcium deposits in and around coronary arteries to diagnose early CAD
doppler ultrasound studies
sound waves measure blood flow within blood vessels
echocardiography (ECHO)
echoes generated by high-frequency sound waves produce images of the heart
positron emission tomography (PET) scan
images show blood flow and myocardial function following uptake of radioactive glucose
technetium Tc 99m sestamibi scan
technetium Tc 99m sestamibi injected intravenously is taken up in cardiac tissue, where it is detected by scanning
thallium 201 scan
concentration of radioactive thallium is measured to give information about blood supply to the heart muscle
cardiac MRI
images of the heart are produced using radio wave energy in a magnetic field
cardiac catheterization
thin, flexible tube is guided into the heart via a vein or an artery
