Included with every panel
Baseline labs come free with any panel you build.
Metabolism & organs
Total bilirubin test
Total breakdown product of red blood cells; high levels can cause jaundice. Included with every panel.
At a glance
In about 5 days
Most results are ready in about 5 days. Some specialty markers can take up to 21 days.
Check before your draw
This marker has no preparation tag, but it can still need preparation. Contact us before your draw if you’re not sure.
Walk in at Quest
Your lab order arrives by email. Most Quest locations take walk-ins, so bring it with a photo ID.
What it measures
Bilirubin is a yellow substance made when your body breaks down old red blood cells. Your liver clears it, and very high levels can turn your skin and eyes yellow.
Why it matters for women
Gallstones are more common in women, and a stone that blocks a bile duct can raise bilirubin. A mild rise on its own may come from Gilbert syndrome, a harmless inherited trait that can show up more when you’re fasting, ill or on your period.
You might check it if…
- you’ve noticed yellowing of your skin or the whites of your eyes
- a past test showed a mildly high level
- you get upper right belly pain after fatty meals
What your result may mean
High Total bilirubin: what it may mean
High bilirubin can reflect liver disease, a blocked bile duct or faster breakdown of red blood cells. A mild rise on its own may come from Gilbert syndrome, a harmless inherited trait that can show up more when you're fasting, ill or on your period. Gallstones can be more common in women, and a stone that blocks a bile duct can raise bilirubin too. Very high levels can cause jaundice, a yellowing of the skin and eyes, and some people may notice dark urine or itching.
Low Total bilirubin: what it may mean
Low bilirubin may not be considered clinically significant. Bilirubin comes from the breakdown of old red blood cells, and a level near the bottom of the range can be harmless. Caffeine and some medicines can lower the reading a little. A low result may not cause any symptoms, and it can't rule out a liver or bile duct problem, so a clinician may read it with your other liver tests.
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These notes provide context and do not diagnose a condition. Not yet available in NY, NJ, RI, HI, ND, SD or WV.