Table 1

Initial blood test results

TestResultNormal rangeRange in pregnancy
Haemoglobin (g/L)108 ↓115–160110–150
White cell count (×109/L)5.04.0–11.0
Platelet count (×109/L)312150–400
Serum sodium (mmol/L)146 ↑134–145132–140
Serum potassium (mmol/L)3.3 ↓3.5–5.03.2–4.6
Serum chloride (mmol/L)108 ↑97–10797–109
Serum bicarbonate (mmol/L)20 ↓24–3418–26
Serum urea (mmol/L)2.7 ↓3.1–8.11.0–3.8
Serum creatinine (µmol/L)40 ↓49–9040–80
Anion gap (mmol/L)22 ↑7–1711–18
Serum albumin (g/L)32 ↓35–4624–31
Serum bilirubin (µmol/L)33–18
Serum alkaline phosphatase (U/L)161 ↑41–119125–250
Serum γ glutamyl transferase (U/L)95–65
Serum alanine aminotransferase (U/L)405–40
Serum aspartate aminotransferase (U/L)3612–36
  • References ranges for pregnancy are given for results that were outside of the routine reference ranges.