Specimen Name Result Units Range
Plasma Sodium 141 mmol/L (135-145)
Potassium 2.9 mmol/L (3.5-5.5)
Chloride 107 mmol/L (100-109)
Bicarbonate 14 mmol/L (22-32)
Urea 3.8 mmol/L (2.7-7.2)
Creatinine 120 μmol/L (60-110)
Phosphate 2.44 mmol/L (0.80-1.45)
Total Calcium 2.13 mmol/L (2.10-2.55)
Blood Hb 120 g/L (130-180)
Platelets 154 x109/L (150-450)
WCC 15.0 x109/L (4.0-11.0)
INR 1.0 (0.8-1.2)
APTT 32 Sec. (25-35)
ABG pH 7.11 (7.36-7.44)
PaO2 373 mmHg (70-100)
PaCO2 32 mmHg (35-45)
HCO3- 17 mmol/L (21-26)
Lactate 8.40 mmol/L (< 1.3)

52yo female.

Witnessed collapse at shopping centre & ambulance to ED
Post Cardiac Arrest
  • Metabolic (↑AG) lactic acidosis
  • High WCC & PO4 → ?rhabdomoylysis
  • Profound hypokalaemia:
    • adjusted for pH → [K+] ≈ 1.5 mmol/L
    • given normal creatinine → probably not skeletal muscle
    • **major risk for further arrhythmia etc. with correction of acidaemia
  • PO2 + 1.25*PCO2 > 150 : patient on supplemental O2

NB : with clinical history → likely cardiogenic shock.