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Cause, also known as etiology (/ iː t i ˈ ɒ l ə dʒ i /) and aetiology, is the reason or origination of something. [1] The word etiology is derived from the Greek αἰτιολογία , aitiologia , "giving a reason for" ( αἰτία , aitia , "cause"; and -λογία , -logia ).
Stroke (also known as a cerebrovascular accident ( CVA) or brain attack) is a medical condition in which poor blood flow to the brain causes cell death. [ 5] There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. [ 5] Both cause parts of the brain to stop functioning properly.
Etiology ( / ˌiːtiˈɒlədʒi /; alternatively spelled aetiology or ætiology) is the study of causation or origination. The word is derived from the Greek word αἰτιολογία ( aitiología ), meaning "giving a reason for" (from αἰτία (aitía) 'cause' and -λογία ( -logía) 'study of'). [ 1] More completely, etiology is the ...
Shock is the state of insufficient blood flow to the tissues of the body as a result of problems with the circulatory system. [ 1][ 2] Initial symptoms of shock may include weakness, fast heart rate, fast breathing, sweating, anxiety, and increased thirst. [ 1] This may be followed by confusion, unconsciousness, or cardiac arrest, as ...
Proximate cause: Because the ship failed to change course to avoid it. Ultimate cause: Because the ship was under autopilot and the autopilot's data was inaccurate. (even stronger): Because the shipwrights made mistakes in the ship's construction. (stronger yet): Because the scheduling of labor at the shipyard allows for very little rest.
A secondary disease is a disease that is a sequela or complication of a prior, causal disease, which is referred to as the primary disease or simply the underlying cause . For example, a bacterial infection can be primary, wherein a healthy person is exposed to bacteria and becomes infected, or it can be secondary to a primary cause, that ...
A syndrome is a set of medical signs and symptoms which are correlated with each other and often associated with a particular disease or disorder. [ 1] The word derives from the Greek σύνδρομον, meaning "concurrence". [ 2]: 1818 When a syndrome is paired with a definite cause this becomes a disease. [ 3] In some instances, a syndrome ...
Acute respiratory distress syndrome ( ARDS) is a type of respiratory failure characterized by rapid onset of widespread inflammation in the lungs. [1] Symptoms include shortness of breath (dyspnea), rapid breathing (tachypnea), and bluish skin coloration (cyanosis). [1] For those who survive, a decreased quality of life is common.