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  1. Stool color: When to worry - Mayo Clinic

    Oct 10, 2024 · Stool comes in a range of colors. All shades of brown and even green are considered typical. Only rarely does stool color indicate a possibly serious intestinal condition. Stool color is …

  2. Bilirubin test - Mayo Clinic

    Nov 9, 2024 · Overview A bilirubin test checks liver health by measuring the levels of bilirubin in the blood. Bilirubin is a substance produced by the breakdown of red blood cells. Bilirubin (bil-ih-ROO …

  3. Hematocrit test - Mayo Clinic

    Why it's done A hematocrit test can help your health care team make a diagnosis or monitor how you respond to a treatment. The test is done as part of a complete blood count (CBC). When the …

  4. 7 fingernail problems not to ignore - Mayo Clinic

    Jun 30, 2023 · Nail clubbing happens when the tips of the fingers get bigger and the nails curve around the fingertips. It usually develops over several years. Nail clubbing may be caused by: Low oxygen in …

  5. Low blood pressure (hypotension) - Symptoms and causes

    Jun 13, 2024 · What's considered low blood pressure for one person might be OK for someone else though. Low blood pressure might cause no symptoms that you notice. Or it might cause dizziness …

  6. New FDA-approved blood tests for diagnosing Alzheimer's disease

    Jul 8, 2025 · The Lumipulse test uses a blood sample drawn at the doctor's office. The test measures certain proteins, including a specific form of the tau protein, that can indicate the presence of amyloid …

  7. PSA test - Mayo Clinic

    Apr 30, 2025 · PSA is mostly found in semen, which also is produced in the prostate. Small amounts of PSA ordinarily circulate in the blood. The PSA test can detect high levels of PSA that may indicate …

  8. Urine color - Symptoms and causes - Mayo Clinic

    Oct 11, 2025 · Overview Regular urine color ranges from clear to pale yellow. But certain things can change the color. Foods such as beets, blackberries and fava beans can turn urine pink or red, for …

  9. Febrile seizure - Symptoms & causes - Mayo Clinic

    Mar 3, 2023 · Febrile seizures are provoked seizures and don't indicate epilepsy. Epilepsy is a condition characterized by recurrent unprovoked seizures caused by abnormal electrical signals in the brain.

  10. Complete blood count (CBC) - Mayo Clinic

    Jan 14, 2023 · What the results may indicate Results in the following areas above or below the typical ranges on a complete blood count might point to a problem. Red blood cell count, hemoglobin and …