Chapter 11 - Pathology And Lab Tests Part 2 Flashcards
Dysrhythmias
Abnormal heart rhythms
Echocardiography (ECHO)
Echoes generated by high-frequency sound waves produce images of the heart
Electrocardiography
Recording of electricity flowing through the heart
Electron beam computed tomography (EBCT or EBT)
Electron beams and CT identify calcium deposits in and around coronary arteries to diagnose early CAD
Embolus
A clot or other substance that travels to a distant location and suddenly blocks a blood vessel
Endarterectomy
Surgical removal of plaque from the inner layer of an artery
Endocarditis
Inflammation of the endocardium (inner lining of the heart)
Extracorporeal circulation
Use of a heart-lung machine to divert blood from the heart and lungs during open heart surgery.
Fibrillation
Very rapid, random, inefficient, and irregular contractions of the heart
Flutter
Rapid, but regular contractions, usually of the atria
Heart block
Same meaning as AV block and bradycardia. Failure of proper conduction of impulses from the SA node through the AV node to the AV bundle (Bundle of His)
Heart transplantation
Donor heart is transferred to a recipient
Hemorrhoids
Swollen, twisted veins in the rectal and anal region
Holter Monitoring (!!!)
An ECG (electrocardiograph) is worn during a 24-hour period to detect cardiac arrhythmias
Hypertension (!!!)
High blood pressure
Hypertensive heart disease
High blood pressure affecting the heart.
Implantable cardioverter-defibrillator (ICD)
Small electric device implanted inside the chest (near the collarbone) to sense arrhythmias and terminate them to restore normal sinus
Infarction
Area of dead tissue
Ischemia
Holding back blood to an region of the body. Myocardial ischemia is deprivation of blood to the heart muscle.
Left ventricular assist device
- Booster pump implanted in the abdomen with a tube inserted into the left ventricle.
- An LVAD is a “bridge to transplant” or destination therapy when heart transplantation is impossible.
Lipid tests
Measurement of cholesterol an triglycerides (fats) in blood sample.
Lipoprotein electrophoresis
Lipoprotein (combinations of fats and proteins) are physically separated in a blood sample.
Mitral stenosis
Narrowing of the mitral valve
Mitral valve relapse
Improper closure of the mitral valve. Blood refluxes backward into the left atrium during ventricular contraction.
Murmur
Extra heart sound, heard between heart beats.
Myocardial Infraction
Area of dead (necrotic) tissue in the heart muscle; heart attack
Nitrates
Drugs used in the treatment of angina. They dilate blood vessels, increasing blood flow and oxygen to myocardial tissue
Nitroglycerin
Nitrate drugs used in the treatment of angina. Dilates coronary arteries.
Occlusion
Blockage or closure of a vessel or tube
Palpitations
Uncomfortable sensations in the chest related to cardiac arrhythmias, such as skipped beats
Patent Ductus Arteriosus (PDA)
Passageway between the aorta and the pulmonary artery remains open after birth.
Percutaneous coronary intervention (PCI)
Balloon-tipped catheter is inserted into a coronary artery to open the artery; stents are put in place