A Middle-Aged Male Has Been Stabbed Once in the Left

question 28

Multiple Choice

A middle-aged male has been stabbed once in the left anterior chest. His airway is patent, respirations tachypneic, pulse weak and rapid, and skin cool and diaphoretic. Breath sounds are clear and equal bilaterally. The vital signs are: pulse 140, respirations 24, blood pressure 100/78 mmHg, and SpO₂ 96% on supplemental oxygen. Given this presentation, you would have a high index of suspicion for:

• A) pneumothorax.
• B) hemothorax.
• C) flail segment.
• D) pericardial tamponade.

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Definitions:

Substitution Effect

The change in demand for a good or service caused by a change in its price, making consumers substitute it with another good or service.

Income Effect

The shift in income levels for either a person or the economy and its influence on the demand for specific goods or services.

Labor Supply

Refers to the total hours that workers are willing and able to work at a given wage rate.

Marginal Utility

The additional pleasure or advantage gained from consuming one further unit of a particular product or service.