Pacific · Calcium, Urine Test
Calcium, Urine Test in California
Calcium, Urine Test can be ordered without a referral from your own doctor, and this guide covers what to expect. A calcium, urine test measures how much calcium is leaving your body through urine. It helps clinicians evaluate kidney, bone, and parathyroid function.
Lab requirements in California
Here is what you need before ordering and completing the Calcium, Urine Test in CA. Review each item and confirm the details with the collection lab.
- Physician's order
- Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
- Fasting
- Some tests require fasting or avoiding certain foods or drinks beforehand. You will be informed when you order — confirm the details with the collection lab.
- Preparation
- Preparation may involve avoiding certain foods or medications, but the exact steps depend on the lab. Always follow the collection lab's instructions.
- Sample & visit
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Identification
- Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
- Turnaround
- 1-3 business days
- Availability
- Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.
Before you go
- Order your test before visiting a lab, then use the requisition form in your account.
- Print the requisition form, or fax it to the lab directly from your account.
- No scheduling is needed — visit the collection lab during its normal business hours.
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Bring a government-issued photo ID in case the lab requests it.
- Results are posted to your secure account within 1–3 business days.
Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.
What this test is
This test measures the amount of calcium excreted in urine over a set period, often 24 hours. It can be done as a single sample or a timed collection, depending on the clinician's request.
What it measures
- Urine calcium — reflects the amount of calcium excreted by the kidneys
- Urine volume — indicates the total volume collected, which affects calcium concentration
- Creatinine (if measured) — helps assess kidney function and collection completeness
What the test involves
You collect all urine produced during a specified time frame, usually 24 hours, into a container provided by the lab. The sample is then returned to the lab for analysis.
Why it is often ordered
A clinician may order this test to investigate kidney stones, bone loss, or parathyroid disorders. It is also used to monitor conditions that affect calcium balance.
Preparation
Preparation may involve avoiding certain foods or medications, but the exact steps depend on the lab. Always follow the collection lab's instructions.
How results are reported
Results are reported as the amount of calcium in the urine, often with a reference range. Reference ranges vary by laboratory, so your clinician will interpret your results in context.
Before you go
- Whether you need a 24-hour or random urine collection
- Any dietary or medication restrictions before collection
- The proper storage and drop-off instructions for your sample
Cities
Calcium, Urine Test in California communities
Choose your city for local context and to order this test.