A woman has a 2-day history of abdominal pain, lethargy and vomiting. RR 26. ABG: pH 7.29, HCO3 15, PCO2 29, Na 132, Cl 99. What is the interpretation?
سؤال مجاني 6 من 10 اليوم · اشترك وكمّل بدون حد
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الإجابة والشرح
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الإجابة: A. High anion gap metabolic acidosis with appropriate (compensatory) respiratory alkalosis
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Nephrology 🌷.pdf · p. 48
pH 7.29 with HCO3 15 = metabolic acidosis. Anion gap = 132 − (99 + 15) = 18, above the normal 8–12, so it is a high anion gap metabolic acidosis. The low PCO2 (29) with RR 26 is the expected respiratory compensation by hyperventilation.
- By Winter's formula (1.5×15 + 8 = 30.5 ± 2), a PCO2 of 29 is appropriate, so there is no second respiratory disorder (B and C are wrong).
- D is wrong because the gap is high, not normal.
- المصدر
- Nephrology 🌷.pdf · p. 48
- المحاضرة
- Acid–Base (old banks) · Nephrology · Module C
- ظهر في
- Nephro bank