blood gas

Blood Gas 001

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A 2-year old male presents with febrile seizure lasting ~10 minutes. 10 minutes after cessation IV access is established and a VBG is taken Results: pH: 7.28 (Reference range: 7.31 – 7.41) pCO2: 60 mmHg (Reference range: 35 – 45 mmHg) HCO3: 18 mmol/L (Reference range: 22 – 29 mmol/L) Base Excess: -8 mmol/L (Reference … Read more

Blood Gases

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I’m going to focus on Arterial blood gases here. Venous gases are close enough in well people, but beware in critical illness there is divergence between arterial and venous samples, particulary in CO2, lactate and pH. Method FiO₂ Calculator 713 x 0.21 = 150 mm Hg Differential Diagnosis HAGMA (CATMUDPILES or LTKR) NAGMA (CAGE, ABCD, … Read more