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A 28-year-old woman presents to the emergency department after a panic attack. She reports rapid breathing and feeling lightheaded. On examination, her respiratory rate is 28 breaths per minute, and her oxygen saturation is 98% on room air. Arterial blood gas results are as follows:
pH: 7.48
PaCO₂: 3.5 kPa
HCO₃⁻: 22 mmol/L
PaO₂: 12 kPa
What is the most likely acid-base disturbance?
A) Metabolic acidosis B) Respiratory acidosis C) Respiratory alkalosis D) Metabolic alkalosis E) Mixed acidosis
A forearm injury that involves a fracture in the upper third of the ulna and a dislocation of the radial head.