2d (edited) • Clinical question
Fq47
A 35-year-old man develops septicaemia following surgery for a perforated acute appendicitis. He is hypotensive. Arterial blood gas analysis reveals the following:
- pH: 7.25 (Normal: 7.35–7.45)
- PaO₂: 7.2 kPa (Normal: 11.9–13.3 kPa)
- PaCO₂: 7.5 kPa
- Bicarbonate (HCO₃⁻): 17 mmol/L
What is the most likely explanation for these findings?
a. Compensated metabolic acidosis
b. Compensated respiratory acidosis
c. Mixed metabolic and respiratory acidosis.
d. Uncompensated metabolic acidosis
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Fq47
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