A hypotensive, volume-depleted 70-year-old: pH 7.2, PCO₂ 35, Na 136, Cl 114, K 4, HCO₃ 14. What is the primary disorder?
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الإجابة: D. Normal anion gap metabolic acidosis
✓ مطابق للمصدر
Acute Kidney Injury [Notes].pdf · p. 8
pH 7.2 with HCO₃ 14 and a low PCO₂ (respiratory compensation) = metabolic acidosis, not respiratory. Anion gap = 136 − (114 + 14) = 8, i.e. normal (the sources treat > 12 as raised), with a high chloride — a normal anion gap (hyperchloremic) metabolic acidosis, typical of GI bicarbonate loss in a volume-depleted patient (e.g. diarrhea).
- High-AG acidosis would need AG > 12 (e.g. severe AKI, lactic acidosis).
- المصدر
- Acute Kidney Injury [Notes].pdf · p. 8
22• Diarrhea [Notes].pdf · p. 6 - المحاضرة
- Acid–Base (old banks) · Nephrology · Module C
- ظهر في
- MED41 ♀ EOM C