Printable checklist

🚨 What Critical Lab Values Are

The results so abnormal that the lab calls the doctor immediately.

Defining Critical Lab Values

  • A **critical lab value** is a result that falls significantly outside the normal range for a healthy person.
  • These results indicate a potential life-threatening condition that requires immediate medical intervention.
  • Because the danger is high, hospital labs follow strict protocols to notify your clinical team the moment the data is processed.
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Why Hospitals Do That logoWhy Hospitals Do That

Explaining the systems behind hospitals. Educational content only — not medical advice. Always consult a healthcare professional for medical decisions.