Patient Resources

Lab Work

Here’s a simple guide to common lab tests and why they’re done. If you have questions about a test, your results or your health, please reach out. Your CFM team is here to help.

A1C test (HbA1c)

Measures the average amount of glucose attached to hemoglobin in your red blood cells over the past 2 to 3 months.

AST and ALT

Measures two liver enzymes—Aspartate aminotransferase and Alanine aminotransferase—that leak into your bloodstream when liver or muscle cells are damaged or inflamed.

Basic Metabolic Panel (BMP)

Is a routine blood test that measures eight specific substances in your blood to evaluate your body’s fluid balance, blood sugar, electrolyte levels, and kidney function.

What is Included in a BMP

  • Glucose: Checks your blood sugar level to screen for or monitor diabetes.
  • Calcium: Evaluates nerve function, muscle contraction, heart health, and blood clotting.
  • Electrolytes:
    • Sodium and Chloride (manage fluid and water balance)
    • Potassium (crucial for heart and cell function)
    • Carbon Dioxide / Bicarbonate (measures acid-base balance)
  • Kidney Function Markers:
    • Blood Urea Nitrogen (BUN) and Creatinine (waste products filtered out by the kidneys)

Complete Blood Count (CBC)

A standard blood test that measures the number and size of cells circulating in your blood to evaluate your overall health and detect conditions like anemia, infections, and blood disorders.

What a CBC Measures

  • Red Blood Cells (RBCs): Cells that carry oxygen from your lungs to the rest of your body, evaluated alongside Hemoglobin (the oxygen-carrying protein) and Hematocrit (the percentage of red blood cells in the blood).
  • White Blood Cells (WBCs): Cells that fight infections and handle immune responses; a “CBC with differential” breaks these down into specific sub-types like neutrophils and lymphocytes.
  • Platelets: Small cell fragments that help your blood clot to stop bleeding.
  • Red Blood Cell Indices: Measurements like MCV (mean corpuscular volume), which tracks the average size of your red blood cells to help classify types of anemia.

Lipid Panel

A blood test that measures cholesterol and triglyceride levels to evaluate your risk for heart disease and stroke.

What the Test Measures

  • Total Cholesterol: Combines all cholesterol types;
  • LDL (Low-Density Lipoprotein): Known as “bad” cholesterol that builds up in artery walls;
  • HDL (High-Density Lipoprotein): Known as “good” cholesterol that helps clear other fats from your blood;
  • Triglycerides: A type of fat stored from unused calories;
  • VLDL & Non-HDL Cholesterol: Extra calculations derived from the profile to further assess cardiovascular risk.

Thyroid-Stimulating Hormone (TSH)

A blood test measures the amount of TSH produced by your pituitary gland to evaluate how well your thyroid is working.

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