TCRN study materials
TCRN study resources

TCRN flashcards

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31 cards. Read the term and the definition here. The deck at the top of this page is optional.

Tension pneumothorax findings
Tracheal deviation away from the affected side, absent breath sounds, hypotension, distended neck veins, and hyperresonance; treated with immediate needle decompression before any imaging.
Beck triad
Three signs of cardiac tamponade: hypotension, distended neck veins, and muffled heart sounds; pulsus paradoxus and a narrowed pulse pressure may also be present.
Cullen sign
Periumbilical ecchymosis suggesting retroperitoneal hemorrhage, often from pancreatic or duodenal injury; Grey Turner sign refers to flank ecchymosis from the same process.
Battle sign
Bruising over the mastoid process behind the ear that indicates a basilar skull fracture; it often appears hours after injury, along with raccoon eyes or cerebrospinal fluid rhinorrhea.
Glasgow Coma Scale scoring
Eye opening scored 1-4, verbal response 1-5, and motor response 1-6; the total ranges from 3 to 15, and a score of 8 or less signals need for intubation.
Kehr sign
Referred left shoulder pain caused by diaphragmatic irritation from splenic rupture or free intraperitoneal blood; the pain often worsens when the patient lies flat.
Revised Trauma Score
A physiologic triage score weighting coded GCS (0.9368), systolic blood pressure (0.7326), and respiratory rate (0.2908); values range 0-7.84 and 4 or less predicts high mortality.
Permissive hypotension
Deliberate limitation of intravenous fluids to keep systolic pressure near 80-90 mmHg until surgical hemorrhage control in penetrating trauma; it is contraindicated in traumatic brain injury.
Lethal triad
The self-reinforcing cycle of hypothermia, acidosis, and coagulopathy in massive hemorrhage; management requires active warming, rapid hemorrhage control, and balanced blood product transfusion.
Abdominal compartment syndrome
Sustained intra-abdominal pressure above 20 mmHg accompanied by new organ dysfunction; suspect it with a distended abdomen, rising peak airway pressures, and falling urine output.
FAST examination
Focused assessment with sonography for trauma, which detects free fluid in pericardial, perihepatic, perisplenic, and pelvic windows; it is rapid, repeatable, and noninvasive at the bedside.
Spinal cord injury pressure goal
For acute spinal cord injury, guidelines recommend maintaining mean arterial pressure of 85-90 mmHg for five to seven days to optimize perfusion of the injured cord.
Neurogenic shock
Hypotension with bradycardia caused by loss of sympathetic tone after cervical or high thoracic cord injury; treat with vasopressors and cautious fluids rather than large boluses.
Raccoon eyes
Periorbital ecchymosis that suggests a basilar skull fracture; avoid nasogastric and nasotracheal tubes because of the risk of intracranial tube passage.
AMPLE history
Secondary survey history covering Allergies, Medications, Past illness or pregnancy, Last meal, and Events of the injury; obtained after the primary survey and resuscitation.
Rule of nines adult
Estimates burn surface area: head 9%, each arm 9%, anterior trunk 18%, posterior trunk 18%, each leg 18%, and perineum 1%, totaling 100% in adults.
Trauma hypothermia prevention
Remove wet clothing, apply warm blankets, infuse intravenous fluids warmed to 39-42 degrees Celsius, and raise room temperature; hypothermia worsens coagulopathy and acidosis.
Early mobility in ICU
Progressive mobilization begun within 24-48 hours of intensive care admission reduces ICU-acquired weakness and ventilator days; hemodynamic and neurologic stability are screened first.
Level I trauma center
Provides 24-hour in-house general surgeon coverage, comprehensive specialty care, plus research and residency education; verified by the American College of Surgeons Committee on Trauma.
Level II trauma center
Provides definitive trauma care with 24-hour general surgeon availability but may lack in-house specialty coverage and research; complex patients may be transferred to a Level I center.
Level III trauma center
Provides prompt resuscitation, emergency surgery, and stabilization with transfer agreements to higher-level centers; the general surgeon may take call from outside the hospital.
Trauma registry purpose
A structured database of trauma patient demographics, injury details, care processes, and outcomes used for quality improvement, research, and injury prevention; data flow to the national data bank.
EMTALA
Federal law requiring Medicare-participating hospitals to perform a medical screening examination and provide stabilizing treatment regardless of insurance status or ability to pay.
Forensic chain of custody
Documented, unbroken control of evidence such as clothing or bullets, kept in separate labeled containers and released directly to law enforcement with signatures and time recorded.
Haddon Matrix
A grid crossing host, agent, and environment with pre-event, event, and post-event phases, used to design and organize injury prevention strategies across the continuum.
Three E's of prevention
Education, enforcement, and engineering or environmental modification; combining all three approaches is more effective at reducing injuries than relying on education alone.
CDC field triage criteria
Red criteria include GCS 13 or less, systolic pressure below 90 mmHg, respiratory rate below 10 or above 29, and penetrating injury to the torso; transport to the highest-level center.
Trauma performance improvement
A multidisciplinary cycle of identifying care issues, reviewing them including preventable death review, implementing corrective actions, and documenting re-measurement and loop closure.
SBAR handoff
Structured communication of Situation, Background, Assessment, and Recommendation used during trauma team handoffs and interfacility transfers to reduce omissions and errors.
Crew resource management
Team training emphasizing leadership, role clarity, closed-loop communication, and mutual monitoring; it reduces human error during high-stress trauma resuscitations and procedures.
START triage
Simple Triage and Rapid Treatment assigns black, red, yellow, or green categories within seconds using respirations, perfusion by capillary refill, and mental status in mass casualty events.