Do You Need to Fast for a CMP?

Fasting is recommended because glucose is measured.

Guidelines

  • 8–12 hours without food
  • Water: yes
  • Medications: as usual

If You Don't Fast

  • Glucose may be elevated
  • Other values less affected

Tests Requiring Fasting

  • Yes: glucose, lipids
  • No: CBC, TSH
Source: American Association for Clinical Chemistry, NLM MedlinePlus.

Ratings summarize government-reported measures — they don't capture your personal needs. Visit the facility, ask about staffing and services, and use CMS checklists. This profile is informational only and is not a recommendation.

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