Which type of blood test is LEAST affected by a delay of more than two hours prior to testing?

The traumatic condition that results in increased intrathoracic pressure, thus displacing the heart and trachea and collapsing the superior and inferior vena cava, is a:

A) massive hemothorax. B) pulmonary contusion. C) traumatic aortic rupture. D) tension pneumothorax.

You are assessing an unresponsive patient who overdosed on a narcotic pain medication. Given the situation, what is the greatest concern regarding potential airway occlusion?

A) Spasm of the epiglottis B) Swelling of the carina C) Collapse of the bronchi D) Relaxation of the tongue