Flow of Blood Backward from the Aorta into the Heart

question 43

Multiple Choice

Flow of blood backward from the aorta into the heart, caused by a weak heart valve, is called:

• A)aortic regurgitation.
• B)myocardial infarction.
• C)myocardial ischemia.
• D)valvulitis.
• E)ventricular septal defect.

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Definitions:

Mechanical Ventilation

A method of providing respiratory support using a machine (ventilator) to push air into and pull air out of the lungs of a patient who is unable to breathe adequately on their own.

Respiratory Rate

The number of breaths a person takes per minute, an important vital sign.

Tachypnea

Abnormally fast respirations, usually more than 24 respirations per minute.

Patent Airway

A clear and unobstructed passageway for air to move in and out of the lungs.