Territories · Kidney & Liver Tests
Kidney & Liver Tests in Puerto Rico
This page explains the kidney & liver tests, what it measures, and how to order it. Kidney and liver tests are blood tests that check how well these vital organs are working. They are often ordered together because both organs help filter and process substances in the body.
Lab requirements in Puerto Rico
Here is what you need before ordering and completing the Kidney & Liver Tests in PR. 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
- Fasting is required for this test — follow the collection lab's instructions.
- Preparation
- Preparation instructions can vary depending on the specific tests included and the laboratory performing them. Always follow the collection lab's instructions, which may include fasting for…
- 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 panel measures several substances in the blood that reflect kidney and liver function. It typically includes tests for waste products, enzymes, and proteins that these organs regulate.
What it measures
- Creatinine — a waste product that reflects kidney filtration
- Blood urea nitrogen (BUN) — another waste product that indicates kidney function
- Estimated glomerular filtration rate (eGFR) — an estimate of how well the kidneys are filtering
- Alanine aminotransferase (ALT) — an enzyme that can indicate liver cell damage
- Aspartate aminotransferase (AST) — an enzyme that can reflect liver or muscle injury
- Alkaline phosphatase (ALP) — an enzyme related to liver and bile duct function
- Bilirubin — a substance that can rise with liver or bile issues
- Albumin — a protein that reflects liver synthetic function and nutritional status
What the test involves
A standard blood draw from a vein in your arm is used to collect the sample. The sample is then sent to a laboratory for analysis.
Why it is often ordered
A clinician may order these tests to screen for or monitor kidney or liver conditions, or to check how these organs are responding to certain medications. They can also be part of a routine health evaluation.
Preparation
Preparation instructions can vary depending on the specific tests included and the laboratory performing them. Always follow the collection lab's instructions, which may include fasting for a certain period before your appointment.
How results are reported
Results are reported as numerical values for each marker, often with a reference range provided by the laboratory. Reference ranges can vary between laboratories, so your results should be interpreted in the context of the lab that performed the test.
Before you go
- Whether fasting is required before your blood draw
- Any medications or supplements you should avoid beforehand
- The expected turnaround time for results
Cities
Kidney & Liver Tests in Puerto Rico communities
Choose your city for local context and to order this test.