A 24-year-old man is rushed to the emergency room after he was involved in a motor vehicle accident. He says that he is having difficulty breathing and has right-sided chest pain, which he describes as 8/10, sharp in character, and worse with deep inspiration. His vitals are: blood pressure 90/65 mm Hg, respiratory rate 30/min, pulse 120/min, temperature 37.2°C (99.0°F). On physical examination, patient is alert and oriented but in severe distress. There are multiple bruises over the anterior chest wall. There is also significant jugular venous distention and the presence of subcutaneous emphysema at the base of the neck. There is an absence of breath sounds on the right and hyperresonance to percussion. A bedside chest radiograph shows evidence of a collapsed right lung with a depressed right hemidiaphragm and tracheal deviation to the left. Which of the following findings is the strongest indicator of cardiogenic shock in this patient?
AJugular venous distention
BHyperresonance to percussion
CSubcutaneous emphysema
DNo right chest raise
ETracheal shift to the left
A 27-year-old man is brought to the emergency department 30 minutes after being shot in the abdomen during a violent altercation. His temperature is 36.5°C (97.7°F), pulse is 118/min and regular, and blood pressure is 88/65 mm Hg. Examination shows cool extremities. Abdominal examination shows a 2.5-cm entrance wound in the left upper quadrant at the midclavicular line, below the left costal margin. Focused ultrasound shows free fluid in the left upper quadrant. Which of the following sets of hemodynamic changes is most likely in this patient? Cardiac output (CO) | Pulmonary capillary wedge pressure (PCWP) | Systemic vascular resistance (SVR) | Central venous pressure (CVP)
A↑ ↓ ↓ ↓
B↓ ↓ ↑ ↑
C↓ ↓ ↓ ↓
D↓ ↓ ↑ ↓
E↓ ↑ ↑ ↑
A 33-year-old pilot is transported to the emergency department after she was involved in a cargo plane crash during a military training exercise in South Korea. She is conscious but confused. She has no history of serious illness and takes no medications. Physical examination shows numerous lacerations and ecchymoses over the face, trunk, and upper extremities. The lower extremities are cool to the touch. There is continued bleeding despite the application of firm pressure to the sites of injury. The first physiologic response to develop in this patient was most likely which of the following?
AIncreased respiratory rate
BIncreased capillary refill time
CDecreased systolic blood pressure
DDecreased urine output
EIncreased heart rate
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