Sodium: what your result means.

An essential electrolyte that regulates fluid balance and nerve function. Sodium is measured by blood test as part of the Organ panel in the HodieLabs Health Blueprint.

Why Sodium matters

Interpret in clinical context and with medications (e.g. diuretics). Interpret using the reporting lab’s reference interval and clinical context; trend over time is often more informative than a single value.

Associated risks when out of range: Electrolyte imbalance, Cardiac/neuromuscular effects when abnormal (contextual).

Evidence basis

The HodieLabs Evidence-Based Clinical Library classifies Sodium as an strong evidence-tier biomarker. Its reference ranges come from a published authority standard rather than from observational optimisation targets. The standard used here is RCPA Australian pathology reference intervals; serum sodium 135–145 mmol/L. <135 hyponatraemia, >145 hypernatraemia. Where relevant clinical outcomes are noted on this page, they reflect the guideline literature referenced below.

Evidence-based reference ranges

The HodieLabs Evidence-Based Clinical Library interprets Sodium against published clinical authority standards, never arbitrary "optimal" ranges. Measured in mmol/L:

Clinical interpretation

• Interpret in clinical context and with medications (e.g. diuretics).
• Interpret using the reporting lab’s reference interval and clinical context; trend over time is often more informative than a single value.

What improves it: the evidence-based levers

• Hydration/electrolyte management
• Clinical review if abnormal

Recommended testing frequency: Annual, as part of a comprehensive panel. Single markers are always interpreted in context.

How Sodium testing works at HodieLabs

Sodium is measured in every Health Blueprint at our Melbourne Preventative Health & Longevity Clinic, interpreted by a doctor against the guideline-cited ranges above and tracked over time through your HodieLabs membership.

References

1. RCPA Australian pathology reference intervals; serum sodium 135–145 mmol/L. <135 hyponatraemia, >145 hypernatraemia.

This page is general information from the HodieLabs Evidence-Based Clinical Library, not medical advice. Speak with your GP about what testing and care is appropriate for you.