Gas Goblin: Case #16

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The Pressure That Won’t Yield

A 47-year-old man with treatment-resistant hypertension presents with muscle weakness and paraesthesia.

VBG
pH: 7.5 (7.35 – 7.45)
pO₂: 34 mmHg (75 – 100)
pCO₂: 42 mmHg (35 – 45)
HCO₃⁻: 34 mmol/L (22 – 26)
BE: 10 mmol/L (-3 – 3)
SaO₂: 99 % (94 – 100)
Na⁺: 146 mmol/L (135 – 145)
K⁺: 2.9 mmol/L (3.5 – 5.5)
Cl: 96 mmol/L (95 – 110)
Ca: 1.2 mmol/L (1.12 – 1.3)
Lactate: 1 mmol/L
Glucose: 5.5 mmol/L (4 – 8)
Urea: 6 mmol/L
Creatinine: 82 μmol/L
Osmolarity: 295 mOsm/L
COHb: 1 % (0.2 – 2)
MetHb: 1 %
fiO2: 0.21

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Parameters

Sample Type VBG

pH

pO₂ (mmHg)

pCO₂ (mmHg)

HCO₃⁻ (mmol/L)

BE (mmol/L)

SaO₂ (%)

Na⁺ (mmol/L)

K⁺ (mmol/L)

Cl (mmol/L)

Ca (mmol/L)

Lactate (mmol/L)

Glucose (mmol/L)

Urea (mmol/L)

Creatinine (μmol/L)

Osmolarity (mOsm/L)

COHb (%)

MetHb (%)

fiO2

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