Chapter 18 Glossary- Cardiac Emergencies Flashcards
acute coronary syndrome (ACS)
a blanket term used to represent any symptoms related to lack of oxygen (ischemia) in the heart muscle. also called cardiac compromise.
acute myocardial infarction (AMI)
the condition in which a portion of the myocardium does as a result of oxygen starvation; often called a heart attack by laypersons.
agonal breathing
irregular, gasping breaths that precede apnea and death.
aneurysm
the dilation, or ballooning, of a weakened section of the wall of an artery.
angina pectoris
pain in the chest occurring when blood supply to the heart is reduced and a portion of the heart muscle is not receiving enough oxygen.
apnea
no breathing
asystole
a condition in which the heart has ceased generating electrical impulses. commonly called flatline.
bradycardia
when the heart rate is slow, usually less than 60 bpm
cardiac compromise
see acute coronary syndrome
cardiopulmonary resuscitation
actions taken to revive a person by keeping the person’s heart and lungs working.
cardiovascular system
the heart and the blood vessels
congestive heart failure (CHF)
the failure of the heart to pump efficiently, leading to excessive blood or fluids in the lungs, the body, or both.
coronary artery disease (CAD)
diseases that affect the arteries of the heart.
defibrillation
delivery of an elctrical shock to stop the fibrillation of the heart muscles and restore a normal heart rhythm.
dyspnea
shortness of breath; labored or difficult breathing.
dysrhythmia
a disturbance in heart rate and rhythm.
edema
swelling resulting from a buildup of fluid in the tissues.
embolism
blockage of a vessel by a clot or foreign material brought to the site by the blood current.
nutroglycerin
a medication that dilated the blood vessels.
occlusion
blockage, as of an artery, by fatty deposits.
pedal edema
accumulation of fluid in the lungs.
pulseless electrical activity (PEA)
a condition in which the heart’s electrical rhythm remains relatively normal, yet the mechanical pumping activity fails to follow the electrical activity, causing cardiac arrest.
sudden death
a cardiac arrest that occurs within 2 hours of the onset of symptoms. the patient may have no prior symptoms of coronary artery disease.
tachycardia
when the heart rate is fast, more than 100 bpm