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Difficulty: EasyTrauma and Burns

Correlate the following classic clinical findings in blunt trauma patients with their most likely associated underlying injury.

  • Referred left shoulder pain following blunt abdominal traumaSplenic laceration
  • Hypotension, jugular venous distention, and muffled heart soundsCardiac tamponade
  • Transverse linear ecchymosis across the lower abdomen after a motor vehicle collisionMesenteric or hollow viscus injury
  • Palpable subcutaneous emphysema and a systolic precordial crunching soundTracheobronchial tree disruption

Answer

Referred left shoulder pain correlates with Splenic laceration. Hypotension, JVD, and muffled heart sounds correlate with Cardiac tamponade. Transverse lower abdominal ecchymosis correlates with Mesenteric or hollow viscus injury. Subcutaneous emphysema with a crunching sound correlates with Tracheobronchial tree disruption.
Each classic trauma sign accurately correlates with a distinct pathophysiological process. Identifying these signs allows for rapid diagnosis and prioritization during the ATLS primary survey. Splenic laceration causes diaphragmatic irritation; tamponade restricts cardiac filling; seatbelts cause mesenteric shearing; and airway disruption introduces air into the mediastinum.

Step-by-Step Solution

1
Evaluate the mechanism of referred left shoulder pain.
Identify that it is caused by left hemidiaphragmatic irritation (phrenic nerve, C3-C5), which is classically caused by a bleeding spleen.
The spleen is located in the left upper quadrant, and rupture directly irritates the left diaphragm.
2
Analyze the triad of hypotension, JVD, and muffled heart sounds.
Recognize this as Beck triad, the classic clinical presentation of cardiac tamponade.
Pericardial fluid restricts ventricular filling, leading to obstructive shock and elevated right-sided pressures.
3
Interpret the significance of a seatbelt mark on the abdomen.
Correlate this specific ecchymosis with high-energy deceleration, leading to crushing or shearing of intra-abdominal contents.
Hollow viscera and the mesentery are particularly vulnerable to these specific shearing forces.
4
Determine the source of a precordial crunch (Hamman sign) and subcutaneous air.
Identify pneumomediastinum, most commonly resulting from injury to a major airway structure.
Disruption of the tracheobronchial tree allows air to track upward into the mediastinum and soft tissues of the chest.

Key Concept

Recognition of classic physical examination findings in trauma and their anatomical correlations.
Estimated Time:45s
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Topics

Trauma and Burns

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