EMT Vocabulary 22-30 Flashcards
Arterial air embolism (22)
Air bubbles in the arterial blood vessels
Blunt trauma
An impact on the body by objects that cause injury without penetrating soft tissues or internal organs and cavities
Cavitation
A phenomenon in which speed causes a bullet to generate pressure waves, which cause damage distant from the bullet’s path
Coup-contrecoup brain injury
A brain injury that occurs when force is applied to the head and energy transmission though the brain tissue causes injury on the opposite side of the original impact
Deceleration
The slowing of an object
Drag
Resistance that slows a projectile, such as air
Glasgow Coma Scale score
An evaluation tool used to determine level of consciousness, which evaluates and assigns point values for eye opening, verbal response, and motor response, which are then totaled, effective in helping predict patient outcomes
Index of suspicion
Awareness that unseen life threatening injuries may exist when determining the mechanism of injury
Kinetic energy
The energy of a moving object
Mechanism of injury
The forces of energy transmission applied to the body that cause injury
Medical emergencies
Emergencies that require EMS attention because of illnesses or conditions not caused by an outside force
Multisystem trauma
Trauma that affects more than one body system
Penetrating trauma
Injury caused by objects, such as knives and bullets, that pierce the surface of the body and damage internal tissues and organs
Potential energy
The product of mass, gravity, and height, which is converted into kinetic energy and results in injury, such as from a fall
Projectile
Any object propelled by force, such as a bullet by a weapon
Pulmonary blast injuries
Pulmonary trauma resulting from short range exposure to the detonation of explosives
Revised Trauma Score
A scoring system used for patients with head trauma
Trajectory
The path a projectile takes once it is propelled
Trauma emergencies
Emergencies that are the result of physical forces applied to a patient’s body
Trauma score
A score that relates to the likelihood of patient survival with the exception of a severe head injury. It calculates a number from 1-16, with 16 being the best possible score. It takes into account the GCS score, respiratory rate, respiratory expansion, systolic blood pressure, and capillary refill
Tympanic membrane
The eardrum; a thin, semitransparent membrane in the middle ear that transmits sound vibrations to the internal ear by means of auditory ossicles
Work
The product of force times distance.
Aorta (23)
The main artery that receives blood from the left ventricle and delivers it to all the other arteries that carry blood to the tissues of the body
Arterioles
The smallest branches of arteries leading to the vast network of capillaries
Artery
A blood vessel, consisting of three layers of tissue and smooth muscle that carries blood away from the heart
Capillaries
The small blood vessels that connect arterioles and venules; various substances pass through capillary walls, into and out of the interstitial fluid, and then on to the cells
Coagulation
The formation of clots to plug openings in injured blood vessels and stop blood flow
Contusion
A bruise, or ecchymosis
Ecchymosis
Discoloration of the skin associated with a closed wound; bruising
Epistaxis
Nosebleed
Hematemesis
Vomited blood
Hematoma
A mass of blood in the soft tissues beneath the skin
Hemophilia
A congenital condition in which the patient lacks one of more of the blood’s normal clotting factors
Hemoptysis
Coughing up blood
Hemorrhage
Bleeding
Hypoperfusion
A condition that occurs when the level of tissue perfusion decreases below that needed to maintain normal cellular functions; aka shock
Hypovolemic shock
A condition in which low blood volume, due to massive internal or external bleeding or extensive loss o body water, results in inadequate perfusion
Melena
Black, foul smelling, tarry stool containing digested blood
Perfusion
Circulation of blood within an organ or tissue in adequate amounts to meet the current needs of the cells
Pressure point
A point where a blood vessel lies near a bone
Shock
A condition in which the circulatory system fails to provide enough circulation so that every body part can perform its function; aka hypoperfusion
Tourniquet
The bleeding control method used when a wound continues to bleed despite the use of direct pressure and elevation; useful if a patient is bleeding severely from a partial or complete amputation
Vasoconstriction
Narrowing of a blood vessel, such as with hypoperfusion or cold extremities
Veins
The blood vessels that carry blood from the tissues to the heart
Venules
Very small, thin walled vessels
Abrasion (24)
Loss or damage of the superficial layer of skin as a result of a body part rubbing or scraping across a rough or hard surface
Amputation
An injury in which part of the body is completely severed
Avulsion
An injury in which soft tissue is torn completely loose or is hanging as a flap
Burns
Injuries in which soft tissue damage occurs as a result from thermal heat, frictional heat, toxic chemicals, electricity, or nuclear radiation
Closed injuries
Injuries in which damage occurs beneath the skin or mucous membrane but the surface remains intact
Compartment syndrome
Swelling in a confined space that produces dangerous pressure; may cut off blood flow or damage sensitive tissue
Contact burn
A burn caused by direct contact with a hot object
Contamination
The presence of infective organisms or foreign bodies such as dirt, gravel, or metal
Contusion
A bruise from an injury that causes bleeding beneath the skin without breaking the skin
Crushing injury
An injury that occurs when a great amount of force is applied to the body
Crush syndrome
Significant metabolic derangement that develops when crushed extremities or body parts remain trapped for prolonged periods. This can lead to renal failure and death
Dermis
The inner layer of the skin, containing hair follicles, sweat glands, nerve endings, and blood vessels
Ecchymosis
Discoloration associated with a closed wound; signifies bleeding
Epidermis
The outer layer of the skin that acts as a watertight protective covering
Evisceration
The displacement of organs outside the body
Fascia
The fiber-like connective tissue that covers arteries, veins, tendons, and ligaments
Flame burn
A burn caused by an open flame
Flash burn
A burn caused by exposure to very intense heat, such as in an explosion
Full thickness (third degree) burn
Burns that affect all skin layers and may affect the subcutaneous layers, muscle, bone, and internal organs, leaving the area dry, leathery, and white, dark brown, or charred
Hematoma
Blood collected within the body’s tissues or in a body cavity
Incision
A sharp, smooth cut
Laceration
A jagged, open wound
Mucous membranes
The linings of body cavities and passages that are in direct contact with the outside environment
Occlusive dressings
Dressings made of petrolatum gauze, aluminum foil, or plastic that prevents air and liquids from entering or exiting a wound
Open injuries
Injuries in which there is a break in the surface of the skin or the mucous membrane, exposing deeper tissue to potential contamination
Partial thickness (second degree) burns
Burns affecting the epidermis and some portion of the dermis but not the subcutaneous tissue, characterized by blisters and skin that is white to red, moist, and mottled
Penetrating wound
An injury resulting from a sharp, pointed object
Rabid
Describes and animal that is infected with rabies
Rule of nines
A system that assigns percentages to sections of the body, allowing calculation of the amount of skin surface involved in the burn area
Scald burn
A burn caused by hot liquids
Steam burn
A burn caused by exposure to hot steam
Superficial (first degree) burns
Burns affecting only the epidermis, characterized by skin that is red but not blistered or actually burned through
Thermal burns
Burns caused by heat
Air embolism (25)
The presence of air in the veins, which can lead to cardiac arrest if it enters the heart
Anisocoria
Naturally occurring uneven pupil size
Blowout fracture
A fracture of the orbit or of the bones that support the floor of the orbit
Conjunctiva
The delicate membrane that lines the eyelids and covers the exposed surface of the eye
Conjunctivitis
Inflammation of the conjunctiva
Cornea
THe transparent tissue layer in front of the pupil and iris of the eye
Eustachian tube
A branch of the internal auditory canal that connects the middle ear to the oropharynx
External auditory canal
The ear canal; leads to the tympanic membrane
Globe
The eyeball