Classification of Plasma Phosphate Concentration
| Plasma phosphate concentration (mmol/L) | Classification | Clinical features |
|---|---|---|
| >3.0 | Severe hyperphosphataemia | Hypocalcaemia, tetany |
| 2.0–3.0 | Moderate hyperphosphataemia | May be asymptomatic |
| 1.2–2.0 | Mild hyperphosphataemia | Usually asymptomatic |
| 0.7–1.2 | Normal range | |
| 0.5–0.7 | Mild hypophosphataemia | Usually asymptomatic |
| 0.3–0.5 | Moderate hypophosphataemia | May be asymptomatic |
| <0.3 | Severe hypophosphataemia | Rhabdomyolysis, myopathy, seizures, coma Haemolysis, thrombocytopenia, cardiac arrhythmias Hypomagnesaemia, hypokalaemia |