A 17-year-old patient presents to A&E complaining of a tight…

A 17-year-old patient presents to A&E complaining of a tight feeling in their chest, shortness of breath as well as 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 kPa (11 – 13 kPa) || 105 mmHg (82.5 – 97.5 mmHg) pH: 7.49 (7.35 – 7.45) PaCO2: 3.2 kPa (4.7 – 6.0 kPa) || 24 mmHg (35.2 – 45 mmHg) HCO3–: 22 (22 – 26 mEq/L) BE: +2 (-2 to +2)

A 48-year-old male has been admitted with a 24 hour history…

A 48-year-old male has been admitted with a 24 hour history of abdominal distention and profuse vomiting. A CT scan reveals a large mass causing bowel obstruction. As part of the patient’s assessment, the surgical registrar requests that you check his blood gas (on air), with the results shown below: PaO2: 12.7 kPa (11 – 13 kPa) || 95.2 mmHg (82.5 – 97.5 mmHg) pH: 7.50 (7.35 – 7.45) PaCO2: 5.5 kPa (4.7 – 6.0 kPa) || 41 mmHg (35.2 – 45 mmHg) HCO3-: 29 (22 – 26 mEq/L) BE: +3 (-2 to +2)