Specimen Name Result Units Range
Plasma Sodium 132 mmol/L (135-145)
Potassium 2.2 mmol/L (3.5-5.5)
Chloride 99 mmol/L (100-109)
Bicarbonate 18 mmol/L (22-32)
Anion Gap 20 mmol/L (7-17)
Glucose 10.2 mmol/L (3.8-5.5)
Urea 3.1 mmol/L (2.7-7.2)
Creatinine 50 μmol/L (60-110)
Osmolality 284 mmol/kg (275-295)
ABG pH 7.35 (7.36-7.44)
PaO2 95 mmHg (70-100)
PaCO2 31 mmHg (35-45)
HCO3- 20 mmol/L (21-26)

32yo female in 3rd trimester & premature labor.

Routine bloods on D2 of admission.
Salbutamol (β2-agonist) Infusion Effects
  • marked hypokalaemia ∝ ICF shift
  • mild hyperglycaemia
  • hyperlactataemia ± mild acidosis
    • late pregnancy normally → mild resp. alkalosis
    • suggested by HCO3-, pH and ↑AG
    • ↑[lactate] can occur without acidaemia ∝ ↑[pyruvate]
      however, is markedly increased with ↑[H+]
  • hyponatraemia
    • dilutional 2° D5W infusion