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Chapter 6
Cardiovascular System: Diagnostic Tests & Procedures
| Term | Definition |
|---|---|
| Angiogram | A radiograph test that uses a contrast agent (dye) and a camera to take pictures of the blood flow in arteries or veins. |
| Auscultation | Process of listening to the internal sounds of the body using a stethoscope. |
| Blood Pressure (BP) | The pressure exerted by the blood on the wall of an artery or vein. Blood pressure is measured using a sphygmomanometer. |
| Cardiac Catheterization | Passage of a tiny plastic tube into the heart through a blood vessel, usually through the femoral artery in the leg; used to diagnose heart diseases or abnormalities. |
| Electrocardiogram (ECG/EKG) | A record of the electrical activity of the heart. |
| Doppler Sonography/Doppler Ultrasound | Procedure in which blood flow & blood pressure are measured using ultrasound technology. The sound waves are 'bounced' off RBCs as they circulate through the blood vessels. Doppler sonography differs from standard ultrasound imaging procedures in that the |
| Echocardium/Multigated Acquisition (MUGA Scan) | A noninvasive diagnostic method that uses ultrasound to visualize internal cardiac structures. |
| Holter Monitor | A machine that continuously records cardiac rhythms; often worn for 24-48 hours to assist with diagnosing an arrhythmia condition. |
| Laboratory (Lab) Test | Examination of body fluids or tissues from a patient to aid in diagnosing an illness, disease, or condition. The following lab tests are commonly used to diagnose conditions of the blood. |
| Apheresis | Separation of blood into its component parts by using a machine. Apheresis removes toxic substances and antibodies from the blood or harvests blood cells. Autoantibodies are antibodies produced by the immune system. They act against a body's tissues, caus |
| Blood Chemistry Profile | A series of tests that analyze the individual blood chemical elements. |
| Coagulation Test | Any of a variety of tests that measure the ability of a patient's blood to clot properly. |
| Complete Blood Count (CBC) | A routine test that determines the total number of RBCs, WBCs, and Platelets. In addition to measuring the amount of hemoglobin carried by the RBCs, this test measures hematocrit, or the proportion of the blood that contains RBCs. A CBC usually includes a |
| Type & Crossmatch | A procedure in which a sample of a donor's blood (generally blood cells) is mixed with a sample of a recipient's blood (typically plasma) to check for blood-type compatibility before a blood transfusion. |
| Positron Emission Tomography (PET) Scan | An imaging test that uses a radioactive substance called a tracer to look for disease or poor blood flow in the heart; helpful for diagnosing heart damage or scar tissue. |
| Nuclear Ventriculography | Noninvasive procedure in which a radioactive substance called a tracer is injected into a patient to produce images of the left or right ventricle of the heart. The test measures the volume of blood pumped by the ventricles. |
| Pulse | The rhythmic throbbing generated by contractions of the heart; detected over the body's major arteries. |
| Stress Test | A procedure that tests how efficiently the heart pumps blood. |
| Exercise Stress Test | Method of evaluating a patient's cardiovascular fitness during exercise, usually on a treadmill. Oxygen consumption and electrical activity of the heart are monitored. |
| Nuclear Thallium Stress Test | Procedure in which a radioactive substance is injected into a vein near the end of a stress test to aid in identifying the sizes of the heart chambers, how well the heart is pumping blood, and whether the heart has any damaged or dead tissue. |
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