A 17-year-old patient presents to A&E complaining of a tight feeling in their chest
A 17-year-old patient presents to A&E complaining of a tight feeling in their chest, shortness of breath, some tingling in their fingers and around their mouth. They have no significant past medical history and are not on any regular medication. An ABG is performed on the patient whilst they’re breathing room air and the results are shown below…
PaO2: 14 (11-13 kPa)
pH: 7.49 (7.35 – 7.45)
PaCO2: 3.2 (4.7-6.0 kPa)
HCO3–: 22 (22-26 mEg/L)
BE: +2 (-2 to +2)
WHAT DOES THE ABG SHOW?WHAT COULD BE THE UNDERLYING CAUSE OF THIS DERANGEMENT?HOW DOES HYPERVENTILATION LEAD TO PERIORAL AND PERIPHERAL PARESTHESIA?