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Electrolyte panel for athletes experiencing muscle cramps, dehydration, and performance issues

Blood Test for Muscle Cramps and Dehydration

Electrolyte Panel

Google
3,138 reviews
  • Pinpoint hydration issues affecting your energy
  • Reveal imbalances causing muscle cramps
  • Clarify electrolyte levels for better performance
First results as soon as overnight*

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

What's this test for?

This test is ideal if you're experiencing muscle cramps, unexplained fatigue, dehydration symptoms, or performance issues during exercise. It helps identify electrolyte imbalances that affect your hydration status, muscle function, and energy levels. Athletes, people with kidney concerns, those taking certain medications, or anyone experiencing frequent cramping should consider this test to pinpoint what's causing their symptoms.

How should I prepare for this test?

No fasting is needed for this test, making it convenient and easy to schedule. You can eat and drink normally before your blood draw. However, it's best to stay well-hydrated with water and avoid excessive exercise immediately before testing, as these can temporarily affect your electrolyte levels.

What's included in this test?

Carbon Dioxide Chloride Potassium Sodium

This panel measures Sodium, Potassium, Chloride, and Carbon Dioxide. These electrolytes are essential minerals that regulate fluid balance, nerve signals, and muscle contractions throughout your body. They work together to maintain proper hydration, support heart rhythm, enable muscle function, and ensure your kidneys are filtering waste effectively. Imbalances in any of these can explain symptoms like cramping, weakness, irregular heartbeat, or fatigue.

What happens after I get my results?
You'll receive detailed doctor notes in simple language explaining what your electrolyte levels mean for your hydration, muscle function, and overall health. These notes include personalized recommendations like dietary changes, hydration strategies, supplement suggestions, or when to follow up with your doctor. You'll also get the standard lab report and can track your electrolyte levels over time using our trends feature to see how your interventions are working.
Who should consider getting this test?
This test is important for athletes and active individuals who experience frequent muscle cramps or fatigue, people with kidney disease or high blood pressure, and anyone taking diuretics or blood pressure medications. It's also valuable if you've had severe vomiting, diarrhea, or dehydration, or if you're monitoring a chronic condition that affects fluid balance.
What symptoms indicate I may need this test?
Common symptoms include frequent muscle cramps or spasms, persistent fatigue or weakness, irregular heartbeat or palpitations, and excessive thirst or urination. You may also experience confusion, nausea, numbness or tingling, or notice you're not recovering well after exercise. These symptoms can indicate your electrolytes are out of balance and affecting your body's normal functions.
How can I naturally support healthy electrolyte balance?
Stay properly hydrated by drinking water throughout the day, especially during and after exercise. Include electrolyte-rich foods like bananas, sweet potatoes, spinach, avocados, nuts, and yogurt in your diet. For athletes, consider natural electrolyte sources like coconut water during intense workouts. Avoid excessive caffeine and alcohol, which can promote dehydration and electrolyte loss.
What causes electrolyte imbalances?
Electrolyte imbalances can result from dehydration due to intense exercise, hot weather, or inadequate fluid intake. Other common causes include vomiting, diarrhea, excessive sweating, certain medications like diuretics, kidney disease, and heart conditions. Extreme diets, excessive alcohol consumption, and chronic conditions like diabetes can also disrupt your electrolyte balance.
What does low potassium mean?
Low potassium, called hypokalemia, can cause muscle weakness, cramps, fatigue, and irregular heartbeat. It often results from excessive sweating, diarrhea, vomiting, or taking certain diuretics. Increasing potassium-rich foods like bananas, oranges, potatoes, and leafy greens can help, but persistent low levels should be discussed with your doctor as they can affect heart function.
How often should I retest my electrolyte levels?
If you're managing a chronic condition or taking medications that affect electrolytes, your doctor may recommend testing every 3-6 months or as needed. Athletes who experience frequent cramping might test quarterly during training season to optimize performance. If your initial results are abnormal, retesting in 4-8 weeks after making dietary or hydration changes helps track improvement.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at [email protected], and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at [email protected]. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email [email protected].
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email [email protected].

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Instant orders, results often overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Potassium 3.3 mEq/L
Demo results
Low Optimal 3.5 - 5.0 High
3.3 mEq/L

What this means

Your potassium level is slightly below the optimal range. While this is not immediately dangerous, it may contribute to muscle cramps, weakness, fatigue, and reduced athletic performance. Low potassium can result from dehydration, excessive sweating, or dietary insufficiency.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Blood Test for Muscle Cramps and Dehydration

Google
3,138 reviews
  • Pinpoint hydration issues affecting your energy
  • Reveal imbalances causing muscle cramps
  • Clarify electrolyte levels for better performance

1,000,000+ blood tests later, here's what our customers say

Google reviews 3138 reviews Next
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.