Shared Flashcard Set

Details

EMT chapter 27
Chest Injuries
35
Medical
Professional
11/22/2008

Additional Medical Flashcards

 


 

Cards

Term
ventilation
Definition
is the body's ability to move air in and out of the chest and lung tissue
Term
respiration
Definition
 the exchange of gases in the alveoli of the lung tissue
Term
In an individual who is lying down or who just completed exhalation
Definition
the diaphragm may rise as high as the nipple line
Term
how may lobes does the right lung have
Definition
3
Term
how many lobes does the left lung have
Definition
2
Term

pleura

Definition
a thin membrane that covers each of the lungs and the lung cavities
Term
parietal pleura
Definition
inner chest wall lining
Term
visceral pleura
Definition

the lining covering the lung  

Term
inhale
Definition

intercostal muscles between the ribs contract, elevating  the rib cage

 

at the same time the diaphragm contracts and pushes the content of the abdomen down

 

the pressure inside the chest decreases and air enters the lung through the nose and mouth 

Term
exhale
Definition

the intercostal muscles and diaphragm relax

 

the tissues move back to their normal positions, allowing  air to be exhaled

Term
phrenic nerves
Definition

nerves supplying the diaphragm exit the spinal at C3, C4, and C5

 

if injured below C5-lose the power to to move intercostal muscles but the daiphragm will still contract, but they are still able to breathe

 

if injured above C3- can lose their ability to breathe

Term
two basic types of chest injuries
Definition
open and closed
Term
closed chest injury
Definition
injury in which the skin is not broken, usually caused by blunt trauma
Term
open chest injury
Definition
the chest wall itself is penetrated by some object
Term
almost 1/3 of people who are killed immediately in car crashes die as a result of?
Definition
traumatic rupture of the aorta
Term

signs and symptoms of chest injuries

Definition
bruising to the chest wall, crepitus with palpation, dyspnea (difficulty breathing), hemoptysis (coughing up blood), failure of one or both sides of the chest to expand normally with inspiration, rapid weak pulse, low blood pressure, cyanosis around the lips and fingernails
Term
pleuritic pain or pleurisy
Definition
a sharp or sticking pain caused by the normally smooth surfaces sliding on one another
Term
hemoptysis
Definition

spitting or coughing up blood. indicates the lung itself or air passages have been damaged

Term
pneumothorax
Definition
accumulation of air in the pleural space (commonly called a collapsed lung)
Term

sucking chest wound

Definition
an open or penetrating chest wall wound through which air passes during inspiration or expiration creating a sucking chest sound
Term
occlusive dressing
Definition

initial emergency medical care for pneumothorax

 

 

 

a dressing made of vaseline gauze, alluminum foil, or plastic that prevents air and liquids from entering and exiting a wound

Term
flutter valve
Definition

initial emergecny medical care for pneumothorax

 

 

   one way valve that allows air to leave the chest cavity but does not return. formed by taping 3 sides of an occlusive dressing to the chest wall, leaving the fourth side open as a valve.

Term

spontaneous pneumothorax

Definition
a pneumothorax that occurs when a weak area of the lung ruptures in absense of major injury, allowing air to leak into the pleural splace. 
Term
tension pneumothorax
Definition
an accumulation of air or gasses in the pleural cavity that progressively increases the pressure in the chest with potentially fatal results.
Term
hemothorax
Definition

a collection of blood in the pleural cavity

 

signs and symptoms are shock, decrease breath sounds,

Term
hemopneumothorax
Definition

the presence of air and blood in the pleaural space.

 

 

Term
fractured ribs
Definition
may lacerate the surface of the lung causing pneumothorax, tension pneumothorax, hemothorax, or hemopneumothorax, crepitus, or subcutaneous emphysema
Term
flail chest
Definition
a condition in which three or more ribs are fractured in two or more places or in association with a fracture of the sternum so that a segment of the chest wall is effectively detached from the rest of the thoracic cage
Term
paradoxical motion
Definition
the motion of the portion of the chest wall that is detached in a flailed chest; the motion- in during inhalation, out during exhalation- is exactly the opposite of normal chest wall motion during breathing
Term
pulmonary contusion
Definition

a bruised lung

the pulmonary alveoli become filled with blood and fluid accumulates in the injured area leaving the patient hypoxic

Term
traumatic asphyxia
Definition
the sudden increase in intrathoracic pressure resulting in distended neck veins, cyanosis in the face and neck, a hemorrhage into the sclera of the eye signaling the bursting of small blood vessels
Term
myocardial contusion
Definition
bruising of the heart muscle
Term
pericardial tamponade
Definition

compression of the heart due a build up of blood or other other fluid in the pericardial sac. the blood accumulates compressing the heart until it can no longer function until the patient goes into cardiac arrest.

 

relatively uncommon

Term
pericardium
Definition
the fibrous sac that surrounds the heart
Term
laceration of the great vessels
Definition

any laceration to the superior or inferior vena cavas, pulmonary arteries, 4 main pulmonary veins, aorta, or any major branches would result in massive rapidly fatal hemorrage

 

treatments include CPR, ventilatory support, supplemental O2, immediate transport

Supporting users have an ad free experience!