Chest Injuries Flashcards
Any injury at the ______ should be considered both a thoracic injury and an abdominal injury.
Nipple line
Spinal cord injuries at ___ or above can completely lose their ability to breathe spontaneously.
C3
Spinal cord injuries at ___ level or below may lose the ability to move intercostal muscles, but the diaphragm will still contract.
C5
How can the diaphragm still contract if a spinal cord injury at C5 level occurs?
The phrenic nerve remains intact due to location of injury.
Central chemoreceptors are found in the ____.
Medulla
Peripheral chemoreceptors are located in the ____ and ____ bodies.
Carotid; aortic
Which chemoreceptors are the main influence on CO2 levels?
Central
Respiratory alkalosis
Result of hyperventilation
CO2 level fall causing a reduction in carbonic acid.
Repspiratory acidosis
Always related to body’s inability to remove CO2
Chest trauma common cause
Buildup of CO2
s/s of chest injury
Pain at site of injury Pain exacerbated by breathing Chest wall bruising Crepitus Penetrating injury Dyspnea Hemoptysis Asymmetric movement Rapid, weak pulse and hypotension Cyanosis around lips or fingernails
What does hemoptysis usually indicate?
Damage to lung parenchyma or airway passages
What does loos of peripheral pulses during inspiration suggest?
Pulsus paradoxus and cardiac tamponade
Pulsus paradoxus
Drop in systolic BP of 10 mmHG or more
What would you expect in a patient w/ a spinal cord injury at C5?
Breathing by diaphragm only
Paralysis of all muscles below the shoulders
Loss of sensation from the shoulders down
What are you looking for during a rapid exam in your primary survey?
Obvious injuries Presence of blood Difficulty breathing Cyanosis Irregular breathing Asymmetrical chest rise and fall Accessory muscle use JVD
Muffled heart tones is a clue of?
Tension pneumothorax or cardiac tampondae
Hyperresonance of chest percussion is:
tympani, drum-like sound indicating present of air. Suggests air in pleural spar or pneumothorax.
Hyporresonance of chest percussion is:
Dull sound indicating solid or fluid suggesting presence of blood or hemothorax,
JVC suggests increased intravenous pressure resulting from :
Tension pneumo
Volume overload
R-sided heart failure
Cardiac tamponade
Life-threatening chest injuries that should be detected and managed during the primary survery?
Airway obstruction Bronchial disruption Diaphragmatic tear Esophageal injury Open pneumo Tension pneumo Hemothorax Flail chest Cardiac tamponade
Life-threating chest injures that may be identified during secondary assessment?
Thoracic aortic dissection
Myocardial contusion
Pulmonary contusion
What should you assess during the breathing portion of your primary survery?
DCAP-BTLS Breath sounds Heart sounds Paradoxical motion Equal chest rise and fall Percussion of chest
What should you assess during the circulation portion of your primary survey?
Pulse
Control external bleeding
Heart sounds
JVD
What should you do in your secondary assessment?
Look for injuries w/ potential to compromise ABCs
Repeat rapid full-body scan
Vital signs - HR, BP, respirations, oxygen sat, mental status, skin condition, pupils, and capnography
Signs of impending cardiopulmonary arrest
Decrease in RR and HR
JVD is best assess in which position?
Semi-fowler at 45 degrees
Why is a fracture to one of the upper four ribs a sign of a very severe MOI?
These four ribs are well protected by the bony girdle of the clavicle and scapula.
What injuries should you suspect with a fracture to the first and second ribs?
First and second : ruptured aorta, tracheobronchial tree injury or vascular injury
Lower rib fractures are associated with injuries to ?
Spleen, kidneys, and liver
Why is a fracture to the floating ribs a sign of s severe MOI?
These ribs are protected by the abdominal musculature which suggest a strong potential for life-threatening injuries.
Assessment of rib fractures
Located TTP, crepitus, pain w/ application of anteroposterior pressure
Exacerbated pain w/ inspiration, expiration, deep breathing, or coughing
Hold affected area of rib cage
Management of rib fractures
Focus on managing ABCs and evaluating pt for other, more lethal injuries.
Administer O2
Splint chest wall w/ pillow or blanket
Assessment of flail chest
DCAP-BTLS Chest wall contusions Respiratory distress Accessory muscle use Paradoxical motion Pleuritic chest pain Crepitus Tacypnea Tahycardi
Management of flail chest
Assess the need for positive pressure ventilation
Administer oxygen
Provide positive pressure ventilation via BVM or CPAP
What injuries should you have a high index of suspicion if a sternal fx is present?
Pulmonary contusion Myocardial contusion Flail chest Vascular disruption of thoracic vessel Intra-abdominal injuries Head injuries
Management of sternal fx
Positive pressure ventilations PRN
Establish IV
Administer isotonic crystalloid solution only to maintain systolic BP on 80-90
Elevate the head of long board to reduce pressure in thoracic cavity and facilitate lung expansion
How would you splint a clavicle fx?
Sling and swathe
Commotio cordis
Chest wall impact directly over the heart, especially over the left ventricle.
Indicators of commotio cordis
Unresponsiveness Apnea Absent pulse Cyanosis Tonic-clonic seziures Chest wall contusions/localized bruising