Glossary

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Term Definition
Cardiac output

The amount of blood that goes through the circulatory system in one minute.

Cardio-thoracic surgeon

A doctor who specializes in the surgical treatment of diseases affecting organs inside the chest. Generally these conditions are of the heart and lungs.

Cardiologist

A doctor that specializes in the diagnosis and treatment of diseases/disorders that affect the function of the heart.

Cardiomegaly

Enlargement of the heart.

Cardiomyopathy

A chronic disease of the heart muscle that causes it to lose its pumping strength.

Cardioversion

The procedure of applying electrical shock to the chest to change an abnormal heartbeat into a normal one.

Carrier

An individual who possesses an unexpressed, recessive trait.

Catheter

A flexible tube inserted through a narrow opening into a body cavity.

CBC (Complete Blood Count)

The determination of the quantity of each type of blood cell in a given sample of blood, often including the amount of hemoglobin, the hematocrit, and the proportions of various white cells. Also called complete blood profile.

Cell

The basic unit of any living organism that carries on the biochemical processes of life.

Cerebrovascular

Relating to the brain and its blood vessels.

Cerebrovascular accident (CVA)

A sudden loss of consciousness resulting when the rupture or occlusion of a blood vessel leads to oxygen lack in the brain. Also known as a stroke.

Cholesterol

A fat-like substance in the body.

Chronic

An illness that is ongoing or that may keep going away and coming back.

Circulatory system

The bodily system consisting of the heart, blood vessels, and blood that circulates blood throughout the body, delivers nutrients and other essential materials to cells, and removes waste products. Also called cardiovascular system.

Colonoscopy

Visual examination of the colon (with a colonoscope) from the cecum to the rectum.

Complete Blood Count (CBC)

A blood test used to evaluate overall health and detect a wide range of disorders, including anemia, infection and neutropenia. A complete blood count test measures several components and features of the blood, including: Red blood cells, white blood cells, hemoglobin, hematocrit and platelets.

Computed tomography (CT or CAT scan)

An x-ray procedure that produces cross-sectional images of the body.

Computerized tomography (CT) scan

A combination of a series of X-ray views taken from many different angles and computer processing to create cross-sectional images of the bones and soft tissues inside the body.

Congenital

Any trait present at birth, whether the result of a genetic or non-genetic factor.

Congenital adrenal hyperplasia

A genetic disorder characterized by a deficiency in the hormones of cortisol and aldosterone and an over-production of the hormone androgen, which is present at birth and affects sexual development.

Congestive heart failure

A condition in which the heart cannot pump out all of the blood that enters it, which leads to an accumulation of blood in the vessels and fluid in the body tissues.

Consciousness

The state of being awake and aware of one's surroundings.

Contagious

Spread of infection from one person or organism to another by direct or indirect contact.

Coronary artery

The artery supplying blood to the heart.

CT Scan

Cat Scans. (Computed Axial Tomography Scan) This is a painless X-rays that uses a computer to make images of your body. This test can produce images of bone, blood and soft tissues so it is often used for patients who have had an injury like a car collision or sports injury.

Cushing syndrome

A relatively rare endocrine (hormonal) disorder resulting from excessive exposure to cortisol. The condition can occur when the body makes too much cortisol.

Cyanosis

Insufficient oxygen in the blood causing a bluish discoloration of the skin.

Defibrillator

An electronic device used to establish normal heartbeat.

Dehydration

Dryness resulting from the removal of water.

Dermatologist

A doctor who specializes in the treatment and conditions of the skin.

Diabetes Type 1

Type 1 diabetes, once known as juvenile diabetes or insulin-dependent diabetes, is a chronic condition in which the pancreas produces little or no insulin, a hormone needed to allow sugar (glucose) to enter cells to produce energy

Diabetes Type 2

Type 2 diabetes, once known as adult-onset or noninsulin-dependent diabetes, is a chronic condition that affects the way the body metabolizes sugar (glucose).

Diastole

Relaxation and filling of the heart ventricles.

Diastolic blood pressure

The lowest blood pressure measure in the arteries, which occurs between heartbeats.

Dietitian

A dietitian has extensive training in the role of macronutrients and micronutrients in health and disease.

Digitalis

Digitalis preparations are also known as digoxin and digitoxin. Digitalis increases the force of the heart's contractions, which can be beneficial in heart failure and for irregular heart beats. Digitalis is a positive inotropic agent. Commonly prescribed include: Lanoxin.

Dilated Cardiomyopathy

A disease of the heart muscle that prevents the muscle from producing the normal force of contraction. Therefore the heart cannot pump enough blood to the organs in the body. The heart becomes weaker and the four heart chambers get larger (dilate). These chambers are the atria (upper chambers) and ventricles (lower chambers). The heart muscle may thicken so that it can produce more force to keep blood pumping normally. The heart valves may also be affected as the heart chambers get large, which may worsen the flow of blood. The impaired heart action can affect lungs, liver, and other organs.

Diuretic

Diuretics are also known as water pills. Diuretics cause the body to rid itself of excess fluids and sodium through urination. Helps to relieve the heart's workload. Also decreases the buildup of fluid in the lungs and other parts of the body, such as the ankles and legs. Different diuretics remove fluid at varied rates and through different methods. Commonly prescribed include: Amiloride (Midamor), Bumetanide (Bumex), Chlorotiazide (Diuril), Chlorthidone (Hygroton), Furosemide (Lasix), Hydrochlorothiazide (Esdrix, Hydrodiuril), Indapamide (Lozol) and Spironolactone (Aldactone)

Doppler ultrasound

A procedure that uses sound waves to evaluate heart, blood vessels, and valves.

Dyspnea

Shortness of breath.

Dysrhythmia (or arrythmia)

An abnormal heart rhythm.

Echocardiogram

A test of the action of the heart using ultrasound waves to produce a visual display.

Edema

A condition characterized by an excess of watery fluid collecting in the cavities or tissues of the body. Edema is sometimes referenced as dropsy and often referenced as swelling.

Ejection fraction

The measurement of the blood pumped out of the ventricles.

Electrocardiogram (ECG or EKG)

A procedure that measures the electrical activity in the heart.

Electrophysiological study (EP/ EPS)

A procedure, which tests electrical conduction system of the heart to assess the electrical activity and conduction pathways of the heart.

Embolism

The sudden blocking of an artery by a clot or foreign material which has been brought to its site of lodgment by the blood current.

Emergency Medicine

A doctor who specializes in prompt diagnosis and treatment of injuries, trauma and sudden illness.

Endocardium

The thin, smooth membrane that lines the inside of the chambers of the heart and forms the surface of the valves.

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