Electrolytes & Minerals Blood Tests with America’s largest network
Electrolytes and minerals, including red-cell levels.
Sodium
Fluid balance.
Potassium
Muscle and heart function.
Chloride
Fluid and acid balance.
Carbon Dioxide (CO2)
Acid balance.
Calcium
Bone, nerve and muscle function.
Phosphate
Bone and energy metabolism.
Magnesium
Muscle, nerve and energy function.
Magnesium, RBC
Magnesium stored inside red blood cells.
Zinc
Immune health and healing.
Zinc, RBC
Zinc stored inside red blood cells.
Copper
Blood and nerve health.
Selenium
Antioxidant and thyroid support.
No tests match your search. Try another word, or show all tests.
Four simple steps
Pick the test that fits your goals. Every biomarker is explained.
Visit a patient service center near you, or a clinician comes to you.
Your sample is analyzed by Quest Diagnostics.
Color-coded results in your secure Hub, explained in plain English.
Good to know
Which test should I start with?
If you want a broad picture, choose the test with the most biomarkers. If you have a specific concern, a focused test is a good place to start. Tap any biomarker to see what it measures.
What is the difference between a clinic and a home visit?
With a clinic visit you go to a patient service center near you. With a home visit, a qualified clinician comes to your home or workplace to take your sample.
Do I need to fast before my test?
Some tests, such as glucose, insulin and cholesterol, are best taken after fasting for 8 to 12 hours. You will receive clear instructions with your booking.
How quickly will I get my results?
Most results are ready in 3 to 5 days after your sample reaches the lab. We email you as soon as your report is in your secure Hub.
Are my results private?
Yes. Your results are stored securely in your BioHealthcare Hub account and are never shared without your consent.
Not sure which test?
Explore every blood test category, or talk to our team.
