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Medical Terms
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10
Medical
Undergraduate 2
12/29/2010

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Term
Cardiac tamponade
Definition
fluid accumulates in the pericardium (the sac in which the heart is enclosed)

muffled heart sounds
Term
Flail chest
Definition
segment of the chest wall bones breaks under extreme stress and becomes detached from the rest of the chest wall.

The flail segment moves in the opposite direction as the rest of the chest wall: because of the ambient pressure in comparison to the pressure inside the lungs, it goes in while the rest of the chest is moving out, and vice versa. This so-called "paradoxical motion" can increase the work and pain involved in breathing. Studies have found that up to half of people with flail chest die. Flail chest is invariably accompanied by pulmonary contusion, a bruise of the lung tissue that can interfere with blood oxygenation.[3] Often, it is the contusion, not the flail segment, that is the main cause of respiratory failure in patients with both injuries
Term
SIADH
Definition
The syndrome of inappropriate antidiuretic hormone hypersecretion (SIADH) is a condition mostly found in patients diagnosed with small cell carcinoma of the lung, pneumonia, brain tumors, head trauma, strokes, meningitis, and encephalitis. This is a syndrome characterized by excessive release of antidiuretic hormone (ADH or vasopressin) from the posterior pituitary gland or another source. The result is hyponatremia, and sometimes fluid overload because excess water is being retained
Term
Oliguria
Definition
low amount of urine
Term
Wernicke-Korsakoff syndrome
Definition
(also called wet brain, Korsakoff's psychosis, alcoholic encephalopathy, Wernicke's disease, and encephalopathy - alcoholic) is a manifestation of thiamine (vitamin B1) deficiency, or beriberi. This is usually secondary to alcohol abuse. It mainly causes vision changes, ataxia and impaired memory.
Term
Ataxia
Definition
is a neurological sign and symptom that consists of gross lack of coordination of muscle movements
Term
Ventricular fibrillation (V-fib or VF)
Definition
condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly.

While there is activity, it is undetectable by palpation (feeling) at major pulse points of the carotid and femoral arteries especially by the lay person. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Basic Life Support interventions because should the arrhythmia continue for more than a few seconds, it will likely degenerate further into asystole ("flatline"). The condition results in cardiogenic shock, cessation of effective blood circulation, and sudden cardiac death (SCD) will result in a matter of minutes. If however the patient is revived after a sufficient period (at room temperature, roughly 5 minutes) of cerebral hypoxia, the patient could sustain irreversible brain damage and possibly be left brain dead
Term
afterload
Definition
resistance that the ventricle must work against to pump blood through the aorta
Term
cardiac output
Definition
amount of blood ejected from the left ventricle per minute
Term
Intra-aortic balloon pump
Definition
prevents cardiovascular collapse in clients whose hearts can't pump
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