blue disease

A newborn baby is being monitored for blue disease in the hospital.

Definition

1. Noun:
   • Pathological condition: "blue disease" is a medical term referring to a condition characterized by cyanosis, a bluish discoloration of the skin and mucous membranes due to low oxygen levels in the blood. It is often used synonymously with "cyanosis" or specific syndromes involving oxygen deficiency.

Usage Examples

• Noun:
  • The infant was diagnosed with blue disease, showing a persistent bluish tint around the lips. (A medical condition involving cyanosis.)
  • In severe cases of pneumonia, patients may develop blue disease as oxygen levels drop. (A pathological sign of hypoxia.)

Advanced Usage

• "Blue disease" in historical context: In older medical texts, "blue disease" was sometimes used to describe congenital heart defects that cause cyanosis, such as tetralogy of Fallot.
  • Before modern surgery, children born with blue disease often had limited life expectancy. (A historical medical term for cyanotic heart conditions.)

Variants and Related Words

• Cyanosis (n): the bluish discoloration of the skin, a primary symptom of blue disease.

  • Cyanosis is the key clinical sign of blue disease. (The discoloration itself.)

• Cyanotic (adj): relating to or affected by cyanosis.

  • The patient's cyanotic appearance indicated blue disease. (The bluish look.)

Synonyms

• Cyanosis: the direct medical term for the bluish condition.
• Blue baby syndrome: a specific form of blue disease in newborns, often due to heart defects or methemoglobinemia.

Related Idioms

• "Blue disease" as a lay term: In non-medical contexts, "blue disease" may be used metaphorically for anything that causes a "blue" or sad state, though this is rare and informal.
  • The team's losing streak was like a blue disease that affected morale. (A metaphorical use, not medical.)