Experiencing dizziness, muscle twitching, or confusion and want assessment of electrolyte balance and hydration status for optimal health?
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.
You will be emailed a referral to take to your local collection centre. If you ever have any questions, we're here to help.
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How does it work?
Bloody Good is a single portal for ordering, tracking, and reviewing on-demand health testing. Get started with three simple steps:
1
Book your test
Choose the testing that suits your goals. After ordering, you will receive your referral by email.
2
Collect your samples
Have your sample collected at one of our 4000+ partner collection centres.
3
View your results
View your lab results and receive a personalised review from the secure Bloody Good platform.
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
You may benefit from the Sodium Blood Test
Essential for individuals with electrolyte symptoms, kidney or heart conditions, or anyone needing comprehensive fluid balance and electrolyte assessment.
High blood pressure readings
Swelling around eyes or face
Comprehensive metabolic panel
Annual physical exam
Dizziness when standing up
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.
You will be emailed a referral to take to your local collection centre. If you ever have any questions, we're here to help.
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Bloody Good is a single portal for ordering, tracking, and reviewing on-demand health testing.
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Frequently Asked Questions
Find answers to common questions about our products and services.
Most collection centres accept walk-ins. Some may require a booking - check details when you click on your chosen location.
If your test needs fasting, we’ll include that in your instructions after you order. Fasting usually means no food for 8–12 hours, but water is fine.
Just your pathology referral form (we email it to you)
Of course. Just maybe don’t bring the friend who faints at the sight of blood.
They’re the highly trained professionals who take your blood sample - with a steady hand and a sharp needle. They love blood, but don’t worry… they’re not vampires. Just legends who make blood tests quick, clean, and (almost) painless.
Some of our tests include Urine, Stool, Saliva and more. Each test will have a clear description on what sample you will need to give and instructions on how.
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