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30 Cards in this Set
- Front
- Back
Clotting:
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The body’s three-step response to stop the loss of blood
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Vascular Phase:
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First step in the clotting process in which smooth blood vessel muscle contracts, reducing the vessel lumen and the flow of blood through it
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Aggregate:
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To cluster or come together
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Platelet Phase:
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Second step in the clotting process in which platelets adhere to blood vessel walls and to each other
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Coagulation:
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Third step in the clotting process, which involves the formation of a protein called fibrin
that forms a network around a wound to stop bleeding, ward off infection and lay a foundation for healing and repair of the wound |
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Fibrin:
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Protein fibres that trap red blood cells as part of the clotting process
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Tourniquet:
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A constrictor used on an extremity to apply circumferential pressure on all arteries to control bleeding
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Lactic Acid:
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Compound produced from pyruvic acid during anaerobic glycolysis
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Anaerobic:
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Able to live without oxygen
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Fascia:
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A fibrous membrane that covers, supports, and separates muscles and may also unite the skin with underlying tissue
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Hematoma:
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Collection of blood beneath the skin or trapped within a body compartment
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Epistaxis:
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Bleeding from the nose resulting from injury, disease, or environment factors; a nosebleed
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Esophageal Varices:
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Enlarged and tortuous esophageal veins
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Melena:
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Black, tar-like feces due to gastrointestinal bleeding
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Anemia:
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A reduction in the hemoglobin content in the blood to a point below that required to meet the oxygen requirements of the body
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Pulse Pressure:
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Difference between the systolic and diastolic blood pressure
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Catecholamine:
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A hormone, such as epinephrine or norepinephrine, that strongly affects the nervous
and cardiovascular systems, metabolic rate, temperature, and smooth muscle |
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Hematochezia:
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Passage of stools containing red blood
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Orthostatic Hypotension:
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A decrease in blood pressure that occurs when a person moves from a supine to a sitting or upright position
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Tilt Test:
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Drop in the systolic blood pressure of 20mmHg or an increase in the pulse rate of 20 beats per
minute when a patient is moved from a supine to a sitting position; a finding suggestive of a relative hypovolemia |
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Metabolism:
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The total changes that take place in an organism during physiological processes
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Ischemia:
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A blockage in the delivery of oxygenated blood to the cells
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Hydrostatic Pressure:
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The pressure of liquids in equilibrium; the pressure exerted by or within liquids
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Rouleaux:
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Group of red blood cells that are stuck together
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Washout:
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Release of accumulated lactic acid, carbon dioxide(carbonic acid), potassium, and roleaux
into the venous circulation |
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Compensated Shock:
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Hemodynamic insult to the body in which the body responds effectively, Signs and symptoms are limited, and the human system functions normally
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Decompensated Shock:
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Continuing hemodynamic insult to the body in which the compensatory mechanisms break down, the signs and symptoms become very pronounced, and the patient moves rapidly toward death
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Irreversible Shock:
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Final stage of shock in which organs and cells are so damaged that recovery is impossible
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Overdrive Respiration:
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Positive pressure ventilation supplied to a breathing patient
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Pneumatic Antishock Garment:
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Garment designed to produce uniform pressure on the lower
extremities and abdomen; used with shock and hemorrhage patients in some EMS systems |