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H

Term Definition
hand-held Doppler test

see “continuous wave Doppler”

heart biopsy

a test in which small tissue samples are removed from your heart and analyzed under a microscope for signs of damage; may be used to check for the cause of heart muscle disease after you have been diagnosed with heart failure but the standard tests have failed to find the cause; also called an endomyocardial biopsy

Heart block

A delayed or complete lack of electrical communication between the upper and lower chambers of the heart.

Heart failure

A condition that results from the inability of the heart to fill with or pump out enough blood to meet the body's needs; also known as congestive heart failure, chronic heart failure

Heart murmur

The abnormal sound brought on by turbulent blood flow as a result of a defective heart valve or certain forms of congenital heart disease. Some heart murmurs are harmless.

Heart rate

The number of times the heart beats per minute. The average resting heart rate is 60 to 100 beats per minute.

heart transplant

the complete replacement of a person's heart with the heart of a deceased donor; the last treatment option for women and men with advanced heart failure that has not responded to other treatments

Helicobacter pylori

A bacterium that causes stomach ulcers. It has also been associated with heart disease.

Hematocrit

A measure of the number and size of red blood cells in a test tube of blood. It is used to test for anemia

Hematoma

A swelling in an organ or tissue containing blood. It can be caused by a tear or break in the wall of a blood vessel.

Heme iron

Iron from animal sources (e.g., red meat),

Hemiparesis

Weakness or partial paralysis on one side of the body; often caused by a stroke

Hemiplegia

Paralysis on one side of the body; often caused by a stroke

Hemochromatosis

A genetic condition causing the body to absorb too much iron.

Hemoglobin

The red pigment in the blood that carries oxygen.

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