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Electrolytes Test

$49

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Measure essential electrolyte levels to identify electrolyte imbalances.

The Electrolyte Test measures the levels of three essential electrolytes in your blood, providing valuable information about your body's health status. This test assesses levels of chloride, potassium, carbon dioxide and sodium. Understanding your electrolyte levels can help identify electrolyte imbalances that may affect fluid balance, nerve and muscle function, blood pressure and overall health.

Electrolytes Test

$49

Test Details

Sample Type: Blood

Collection Method: In person at a Labcorp location

Age: 18+

Results: 1 day from when your sample arrives at our lab

HSA/FSA: Accepted

Test must be taken by purchaser

Preparation: No special preparation needed.

What's Tested

Chloride

An electrically charged mineral (electrolyte) that helps regulate fluid and acid-base balance within the body.
Potassium

An electrically charged mineral (electrolyte) vital to a cell’s ability to take in nutrients and remove waste; it is also essential for muscle function and regulating fluid balance.
Carbon Dioxide (CO2)

A waste product created by the body’s metabolism that helps maintain the body’s acid-base balance (pH) in the form of the electrolyte bicarbonate.
Sodium

An electrically charged mineral (electrolyte) necessary for healthy muscle and nerve function that also helps maintain fluid balance.

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Identify electrolyte imbalances

Signs of electrolyte imbalances are often subtle and could be indicators of other health issues. Symptoms such as muscle weakness, irregular heartbeat or fatigue may be related to electrolyte imbalances and can often go unnoticed.

Taking a proactive approach to health?

An electrolyte panel is typically part of a routine blood test or physical exam, or as part of a comprehensive metabolic panel (CMP), and can help you and your healthcare provider determine your next steps for improved health.

While 6 in 10 adults have a chronic disease and 4 in 10 have two or more, understanding your electrolyte balance can guide changes in lifestyle and behavior for better health.¹

Maintain your body's balance

Electrolytes like sodium, potassium, and chloride are crucial for proper hydration, nerve and muscle function, blood pressure and overall health. Testing these levels can help you understand your body's electrolyte balance and make informed decisions about your overall health.

1. National Institutes of Health. Electrolyte Panel: What Is an Electrolyte Panel? Medlineplus.gov. Accessed February 18, 2025. https://medlineplus.gov/lab-tests/electrolyte-panel/
2. Labcorp. Electrolyte Panel. Accessed February 18, 2025. https://www.labcorp.com/tests/303754/electrolyte-panel

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Purchase Your Test

Simply purchase this test online. A healthcare provider will review and approve your test requests; no healthcare provider visit is required.

Provide Your Sample

Visit a Labcorp location near you for sample collection. Visits may be scheduled online.

Get Your Results

View your easy-to-read results online in your Labcorp Patient™ account, including Linked Accounts. For certain results that require prompt attention, you will also be contacted by phone or mail.

Patient Service Centers

Labs in more than 2,000 locations across the country.

Find a Location Near You

Comprehensive Metabolic Panel (CMP)

The CMP blood test measures key components for insights on your metabolism, liver and kidneys.

$49

Kidney Health Test

This kidney function test provides a picture of your overall health.

$99

Standard Health Test

This panel provides screenings commonly ordered at an annual physical.

$99

FAQ

This test may be beneficial for anyone interested in assessing their overall health and wanting to check electrolyte levels to identify potential imbalances.
An electrolyte imbalance means that the level of one or more electrolytes in your body is too low or too high. Symptoms can vary but may include muscle cramps, weakness, irregular heartbeat, fatigue, confusion, and in severe cases, seizures. However, these symptoms may be associated with various health conditions, so it's important to consult with a healthcare provider for proper evaluation.
Visit the Labcorp OnDemand website to browse and purchase laboratory tests and create your Labcorp OnDemand account. All Labcorp OnDemand testing requires a healthcare provider order; for your convenience, Labcorp OnDemand has contracted with PWNHealth LLC and its affiliated professional entities (collectively, PWNHealth) to provide healthcare provider services. Visit a Labcorp location for sample collection; or, if using an at-home kit, collect your sample yourself. We’ll let you know when your results are ready to be accessed through your Labcorp OnDemand account or through your Labcorp Patient account.
Your results will be provided to you through our secure online portal to view or print. Results are also made available through a secure portal to the independent healthcare provider who placed your test order. If you are accessing your results through your Labcorp Patient™ account, all users linked to the account will have access to all OnDemand test results. Results may also be provided to a local, state, and/or federal health authority; for example, many states require the testing laboratory and physician to report test results for certain communicable diseases, such as COVID-19, to local or state health departments.

If you have questions or comments regarding the Labcorp Notice of Privacy Practices, or have a complaint about our use or disclosure of your PHI or our privacy practices, please contact: privacyofficer@labcorp.com, call us at (877) 234-4722 (877-23-HIPAA) and ask for the Labcorp HIPAA Privacy Officer, or send a written request to: HIPAA Privacy Officer, Labcorp, 531 South Spring Street, Burlington, NC 27215. You also may file a complaint with the Secretary of the U.S. Department of Health and Human Services.
Visit the Labcorp OnDemand® website to browse and purchase laboratory tests and create your Labcorp Patient™ account to view your results. All Labcorp OnDemand testing requires an order from an authorized healthcare professional. For your convenience, Labcorp OnDemand has contracted with independent professional entities (collectively, Providers) to deliver healthcare provider services. Visit a Labcorp location for sample collection; or, if using an at-home collection kit, collect your sample yourself. We’ll let you know when your results are ready and can be accessed through your Labcorp Patient™ account.

See More FAQs

Comprehensive Metabolic Panel (CMP)

The CMP blood test measures key components for insights on your metabolism, liver and kidneys.

$49

Kidney Health Test

This kidney function test provides a picture of your overall health.

$99

Standard Health Test

This panel provides screenings commonly ordered at an annual physical.

$99

Get 10% off your first test

Want health answers? Get started with 10% off your first test.* Sign up now to receive your discount.

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Electrolytes Test

Measure essential electrolyte levels to identify electrolyte imbalances.

Test Details