FCEM2-0600

A 32 year old male arrives at the emergency department about 1 hour after completing a SCUBA dive. The patient reports experiencing a headache, dizziness, and discomfort in the shoulders and knees. You inform the patient that you suspect he is suffering from ‘the bends’ and proceed to explain how gas bubbles expand in size as divers ascend and water pressure decreases. Which scientific principle describes the correlation between gas volume and absolute pressure?