Hospital
$70+
Other Labs
$29
TestWell
$18.99
Phosphorus is the second most abundant mineral in the body and works closely with calcium to build and maintain strong bones and teeth. It is also essential for energy storage and transfer (as ATP), DNA/RNA synthesis, and acid-base balance. Abnormal phosphorus levels can indicate kidney disease, parathyroid disorders, or vitamin D deficiency. This test is often ordered alongside calcium and vitamin D panels.
Sample Type
Blood draw
Fasting
Not required
Results In
1–3 business days
Performed By
Labcorp
1 biomarker tested
Your Phosphorus results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 1–3 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
No fasting required, though morning fasting samples are preferred for consistency.
TestWell Price
$18.99
No insurance needed · HIPAA compliant
Frequently ordered together
Customers who ordered Phosphorus also added these for a more complete health picture.
Complete blood count with white blood cell breakdown — the gold standard for overall blood health screening.
$21.99
The primary screening test for thyroid function — detects both overactive and underactive thyroid.
$26.99
Measures your body's iron stores — the most sensitive early indicator of iron deficiency.
$24.99
Phosphorus
$18.99