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Is fasting required before my blood test?

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Fasting is often necessary for accurate blood test results. Food and beverages can temporarily affect blood chemistry levels, leading to inaccurate measurements.

Tests that commonly require fasting include:

  • Hormone tests and panels
  • Cholesterol, glucose, and metabolic tests
  • Deficiency tests (Iron, Vitamin B12, etc.)
  • Thyroid tests

Your lab order will specify fasting requirements. Follow these instructions carefully for accurate results.