Approach to assessing peripartum hyponatraemia
| History | |
| Symptoms | Drowsiness and confusion |
| Past medical history | Renal disease, pancreatitis, liver disease and cardiac failure |
| Drug history | Diuretics, PPI and oxytocin |
| Obstetric history | Duration of labour and estimated blood loss |
| Examination | |
| Observations | Tachycardia and blood pressure |
| Fluid status | JVP, peripheral oedema and crepitations on chest auscultation |
| Investigations | |
| Biochemical tests | Electrolytes, serum and urine osmolality, and renal profile |
| Fluid balance | Hourly urine output |
JVP = jugular venous pressure; PPH = postpartum haemorrhage; PPI = proton pump inhibitor.