Trauma, C38 P226-246 Flashcards
What widely accepted
protocol does trauma care
in the United States follow?
P226
Advanced Trauma Life Support (ATLS)
precepts of the American College of
Surgeons
What are the three main
elements of the ATLS
protocol?
P226
- Primary survey/resuscitation
- Secondary survey
- Definitive care
How and when should the
patient history be obtained?
P227
It should be obtained while completing
the primary survey; often the rescue
squad, witnesses, and family members
must be relied upon
PRIMARY SURVE
What are the five steps of
the primary survey?
P227
Think: “ABCDEs”: Airway (and C-spine stabilization) Breathing Circulation Disability Exposure and Environment
PRIMARY SURVE What principles are followed in completing the primary survey? P227
Life-threatening problems discovered
during the primary survey are always
addressed before proceeding to the
next step
AIRWAY
What are the goals during
assessment of the airway?
P227
Securing the airway and protecting the
spinal cord
AIRWAY In addition to the airway, what MUST be considered during the airway step? P227
Spinal immobilization
AIRWAY
What comprises spinal
immobilization?
P227
Use of a full backboard and rigid cervical
collar
AIRWAY In an alert patient, what is the quickest test for an adequate airway? P227
Ask a question: If the patient can speak,
the airway is intact
AIRWAY
What is the first maneuver
used to establish an airway?
P227
Chin lift, jaw thrust, or both; if successful,
often an oral or nasal airway can be
used to temporarily maintain the airway
AIRWAY If these methods are unsuccessful, what is the next maneuver used to establish an airway? P227
Endotracheal intubation
AIRWAY If all other methods are unsuccessful, what is the definitive airway? P228 (picture)
Cricothyroidotomy, a.k.a. “surgical airway”: Incise the cricothyroid membrane between the cricoid cartilage inferiorly and the thyroid cartilage superiorly and place an endotracheal or tracheostomy tube into the trachea
AIRWAY What must always be kept in mind during difficult attempts to establish an airway? P228
Spinal immobilization and adequate oxygenation; if at all possible, patients must be adequately ventilated with 100% oxygen using a bag and mask before any attempt to establish an airway
BREATHING
What are the goals in
assessing breathing?
P228
Securing oxygenation and ventilation
Treating life-threatening thoracic injuries
BREATHING
What comprises adequate
assessment of breathing?
P228
Inspection—for air movement, respiratory rate, cyanosis, tracheal shift, jugular venous distention, asymmetric chest expansion, use of accessory muscles of respiration, open chest wounds Auscultation—for breath sounds Percussion—for hyperresonance or dullness over either lung field Palpation—for presence of subcutaneous emphysema, flail segments
BREATHING What are the life-threatening conditions that MUST be diagnosed and treated during the breathing step? P228
Tension pneumothorax, open
pneumothorax, massive hemothorax
BREATHING
What is it?
P229
Injury to the lung, resulting in release of air
into the pleural space between the normally
apposed parietal and visceral pleura
BREATHING
How is it diagnosed?
P229
Tension pneumothorax is a clinical
diagnosis: dyspnea, jugular venous
distention, tachypnea, anxiety, pleuritic
chest pain, unilateral decreased or absent
breath sounds, tracheal shift away from
the affected side, hyperresonance on the
affected side
BREATHING
What is the treatment of a
tension pneumothorax?
P229
Rapid thoracostomy incision or immediate decompression by needle thoracostomy in the second intercostal space midclavicular line, followed by tube thoracostomy placed in the anterior/ midaxillary line in the fourth intercostal space (level of the nipple in men)
BREATHING
What is the medical term for
a “sucking chest wound”?
P229
Open pneumothorax
BREATHING
What is a tube thoracostomy?
P229
“Chest tube”
BREATHING How is an open pneumothorax diagnosed and treated? P229
Diagnosis: usually obvious, with air movement through a chest wall defect and pneumothorax on CXR Treatment in the ER: tube thoracostomy (chest tube), occlusive dressing over chest wall defect
BREATHING
What does a pneumothorax
look like on chest X-ray?
P229 (picture
Loss of lung markings (Figure shows a
right-sided pneumothorax; arrows point
out edge of lung-air interface)
Flail Chest
What is it?
P230 (picture)
Two separate fractures in three or more
consecutive ribs
Flail Chest
How is it diagnosed?
P230
Flail segment of chest wall that moves
paradoxically (sucks in with inspiration
and pushes out with expiration opposite
the rest of the chest wall)
Flail Chest What is the major cause of respiratory compromise with flail chest? P230
Underlying pulmonary contusion!
Flail Chest
What is the treatment?
P230
Intubation with positive pressure
ventilation and PEEP PRN (let ribs heal
on their own)
Cardiac Tamponade
What is it?
P230
Bleeding into the pericardial sac, resulting
in constriction of heart, decreasing inflow
and resulting in decreased cardiac output
(the pericardium does not stretch!)
Cardiac Tamponade
What are the signs and
symptoms?
P230
Tachycardia/shock with Beck’s triad,
pulsus paradoxus, Kussmaul’s sign
Cardiac Tamponade
Define the following:
Beck’s triad
P231
- Hypotension
- Muffled heart sounds
- JVD
Cardiac Tamponade
Define the following:
Kussmaul’s sign
P231
JVD with inspiration
Cardiac Tamponade
How is cardiac tamponade
diagnosed?
P231
Ultrasound (echocardiogram)
Cardiac Tamponade
What is the treatment?
P231
Pericardial window—if blood returns
then median sternotomy to rule out and
treat cardiac injury
Massive Hemothorax
How is it diagnosed?
P231
Unilaterally decreased or absent breath
sounds; dullness to percussion; CXR, CT
scan, chest tube output
Massive Hemothorax
What is the treatment?
P231
Volume replacement
Tube thoracostomy (chest tube)
Removal of the blood (which will allow
apposition of the parietal and visceral
pleura, sealing the defect and slowing
the bleeding)
Massive Hemothorax What are indications for emergent thoracotomy for hemothorax? P231
Massive hemothorax 1. >1500 cc of blood on initial placement of chest tube 2. Persistent >200 cc of bleeding via chest tube per hour x 4 hours
CIRCULATION
What are the goals in
assessing circulation?
P231
Securing adequate tissue perfusion;
treatment of external bleeding
CIRCULATION
What is the initial test for
adequate circulation?
P231
Palpation of pulses: As a rough guide,
if a radial pulse is palpable, then systolic
pressure is at least 80 mm Hg; if a
femoral or carotid pulse is palpable, then
systolic pressure is at least 60 mm Hg
CIRCULATION
What comprises adequate
assessment of circulation?
P231
Heart rate, blood pressure, peripheral
perfusion, urinary output, mental status,
capillary refill (normal <2 seconds), exam
of skin: cold, clammy = hypovolemia
CIRCULATION
Who can be hypovolemic
with normal blood pressure?
P232
Young patients; autonomic tone can
maintain blood pressure until
cardiovascular collapse is imminent
CIRCULATION Which patients may not mount a tachycardic response to hypovolemic shock? P232
Those with concomitant spinal cord
injuries
Those on -blockers
Well-conditioned athletes
CIRCULATION
How are sites of external
bleeding treated?
P232
By direct pressure; / tourniquets
CIRCULATION What is the best and preferred intravenous (IV) access in the trauma patient? P232
“Two large-bore IVs” (14–16 gauge),
IV catheters in the upper extremities
(peripheral IV access)
CIRCULATION
What are alternate sites of
IV access?
P232
Percutaneous and cutdown catheters in
the lower leg saphenous; central access
into femoral, jugular, subclavian veins
CIRCULATION For a femoral vein catheter, how can the anatomy of the right groin be remembered? P232
Lateral to medial “NAVEL”: Nerve Artery Vein Empty space Lymphatics Thus, the vein is medial to the femoral artery pulse (Or, think: “venous close to penis”)
CIRCULATION
What is the trauma
resuscitation fluid of choice?
P232
Lactated Ringer’s (LR) solution
(isotonic, and the lactate helps buffer the
hypovolemia-induced metabolic acidosis)
CIRCULATION
What types of decompression
do trauma patients receive?
P232
Gastric decompression with an NG tube
and Foley catheter bladder decompression
after normal rectal exam
CIRCULATION What are the contraindications to placement of a Foley? P232
Signs of urethral injury: Severe pelvic fracture in men Blood at the urethral meatus (penile opening) “High-riding” “ballotable” prostate (loss of urethral tethering) Scrotal/perineal injury/ecchymosis
CIRCULATION What test should be obtained prior to placing a Foley catheter if urethral injury is suspected? P233
Retrograde UrethroGram (RUG): dye in
penis retrograde to the bladder and x-ray
looking for extravasation of dye
CIRCULATION How is gastric decompression achieved with a maxillofacial fracture? P233
Not with an NG tube because the tube
may perforate through the cribriform
plate into the brain; place an oral-gastric
tube (OGT), not an NG tube
DISABILITY
What are the goals in
assessing disability?
P233
Determination of neurologic injury
Think: neurologic disability
DISABILITY
What comprises adequate
assessment of disability?
P233
Mental status—Glasgow Coma Scale (GCS) Pupils—a blown pupil suggests ipsilateral brain mass (blood) as herniation of the brain compresses CN III Motor/sensory—screening exam for lateralizing extremity movement, sensory deficits
DISABILITY
Describe the GCS scoring
system.
P233
Eye opening (E) 4—Opens spontaneously 3—Opens to voice (command) 2—Opens to painful stimulus 1—Does not open eyes (Think: Eyes = “four eyes”) Motor response (M) 6—Obeys commands 5—Localizes painful stimulus 4—Withdraws from pain 3—Decorticate posture 2—Decerebrate posture 1—No movement (Think: Motor = “6-cylinder motor”) Verbal response (V) 5—Appropriate and oriented 4—Confused 3—Inappropriate words 2—Incomprehensible sounds 1—No sounds (Think: Verbal = “Jackson 5”)
DISABILITY
What is a normal human GCS?
P234
GCS 15
DISABILITY
What is the GCS score for a
dead man?
P234
GCS 3
DISABILITY
What is the GCS score for a
patient in a “coma”?
P234
GCS ⩽8
DISABILITY
How does scoring differ if
the patient is intubated?
P234
Verbal evaluation is omitted and replaced
with a “T”; thus, the highest score for an
intubated patient is 11 T
EXPOSURE AND ENVIRONMENT
What are the goals in
obtaining adequate exposure?
P234
Complete disrobing to allow a thorough
visual inspection and digital palpation of
the patient during the secondary survey
EXPOSURE AND ENVIRONMENT
What is the “environment”
of the E in ABCDEs?
P234
Keep a warm Environment (i.e., keep the
patient warm; a hypothermic patient can
become coagulopathic)
SECONDARY SURVEY What principle is followed in completing the secondary survey? P234
Complete physical exam, including all
orifices: ears, nose, mouth, vagina,
rectum
SECONDARY SURVEY
Why look in the ears?
P234
Hemotympanum is a sign of basilar skull
fracture; otorrhea is a sign of basilar skull
fracture
SECONDARY SURVEY Examination of what part of the trauma patient’s body is often forgotten? P234
Patient’s back (logroll the patient and
examine!)
SECONDARY SURVEY
What are typical signs of
basilar skull fracture?
P234
Raccoon eyes, Battle’s sign, clear otorrhea
or rhinorrhea, hemotympanum
SECONDARY SURVEY What diagnosis in the anterior chamber must not be missed on the eye exam? P234
Traumatic hyphema = blood in the
anterior chamber of the eye
SECONDARY SURVEY What potentially destructive lesion must not be missed on the nasal exam? P235
Nasal septal hematoma: Hematoma must
be evacuated; if not, it can result in
pressure necrosis of the septum!