Cardiovascular Disease - Bloody Good
Kidney Health

Sodium

The Sodium Blood Test measures the level of sodium, an electrolyte that helps control fluid balance, blood pressure, and muscle and nerve function. Abnormal levels may suggest dehydration, kidney problems, or issues with hormone balance.

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Sodium

Experiencing dizziness, muscle twitching, or confusion and want assessment of electrolyte balance and hydration status for optimal health?

Overview

Think of sodium as your body's master water manager – it's the mineral that decides where fluids go and how they're distributed throughout your system. The Sodium test measures the levels of this essential mineral in your blood, giving you insight into how well your body is balancing fluids, supporting nerve communication, and keeping your muscles (including your heart) working properly. Just like a skilled conductor directing an orchestra, sodium orchestrates the movement of water in and out of your cells while ensuring your nerves can send clear signals and your muscles can contract smoothly.

When your sodium levels are off-balance, your body sends warning signals like dizziness, muscle weakness, confusion, or changes in blood pressure – think of these as your internal alarm system alerting you that your fluid management system needs attention. This test is particularly valuable if you're experiencing unexplained fatigue, muscle twitching, or neurological symptoms, or if you have conditions like kidney disease, heart problems, or take medications that affect fluid balance. By understanding your sodium levels, you and your healthcare provider can work together to optimize your body's fluid balance, ensuring your cells, nerves, and muscles have exactly what they need to keep you feeling your best.

Reviewed by Dr. Vu Tran
Bloody Good’s Chief Medical Officer

Symptoms

You may benefit from this test if you experience:
High blood pressure readings Swelling around eyes or face Comprehensive metabolic panel Annual physical exam Dizziness when standing up

Purpose

Essential for individuals with electrolyte symptoms, kidney or heart conditions, or anyone needing comprehensive fluid balance and electrolyte assessment.

How to prepare

No special preparation required. Inform healthcare provider of all medications, particularly diuretics and blood pressure medications, and recent fluid intake that might affect sodium levels.

Understanding results

Results show sodium levels compared to normal ranges. Abnormal levels may indicate electrolyte imbalances, dehydration, overhydration, or underlying conditions requiring appropriate treatment.

After the test

Address abnormal sodium through appropriate fluid and electrolyte management, dietary modifications, medication adjustments, and treatment of underlying conditions. Work with specialists as needed.

Frequently Asked Questions

  • Sodium is essential for fluid balance, nerve transmission, muscle contraction, blood pressure regulation, and maintaining proper cellular function throughout the body.
  • High sodium (hypernatremia) may indicate dehydration, excessive sodium intake, kidney problems, or certain hormonal disorders, requiring fluid management and treatment.
  • Low sodium (hyponatremia) may indicate overhydration, kidney disease, heart failure, liver disease, or certain medications, potentially causing serious neurological symptoms.
  • Causes include kidney disease, heart failure, liver disease, certain medications (especially diuretics), excessive fluid intake or loss, and hormonal disorders.
  • Most health organizations recommend limiting sodium intake to 2,300mg or less per day, with lower amounts (1,500mg) recommended for certain individuals.
  • High-sodium foods include processed foods, restaurant meals, canned soups, deli meats, cheese, and foods with added salt or sodium-containing preservatives.
Sodium

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How it works

What to expect

We want you to feel bloody good—inside and out. Regular testing isn’t just about checking your current health; it helps you spot abnormal values you might not know about.

1

Book your referral

Choose the testing that suits your goals. After ordering, you will receive your referral by email.

2

Collect your sample

Easy sample collection at one of our 4000+ partner collection centres throughout Australia. Find nearest

3
Receive your results

Receive your results

View your lab results and receive a personalised review from the secure Bloody Good platform.

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