ca total (total calcium)
ElectrolyteBlood sampleResults 24 hrsNo fasting
Ca Total (Total Calcium)
Total calcium measures all the calcium in your blood, both free and protein-bound. It's a common screening test for bone health, kidney function, and parathyroid or calcium-related conditions.
Sample
Blood
Results
24 hrs
Fasting
Not required
Follow-up
Optional add-on
What this test detects
Total calcium
Enzymatic colorimetry · serum
Quantitative · mg/dL
When to get this test
Bone and parathyroid health
Screens for conditions affecting calcium balance, including parathyroid disorders and bone disease.
Kidney function
Often included in routine panels to help evaluate how the kidneys are handling minerals.
General health check
Part of standard metabolic panels for overall wellness screening.
How to prepare
01
No special preparation needed.
Common questions
Why might my calcium be high or low?
Many factors can affect calcium, including parathyroid activity, vitamin D, kidney function, and certain medications. A single result is best interpreted in context.
Should I take my calcium supplements before the test?
Let your provider know about any supplements you take. They may advise on timing, as supplements can affect your reading.