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RSV-Bronchiolitis

Definition

  • Your child has been diagnosed with bronchiolitis
  • It's an infection of the smallest airways in the lungs
  • Caused by a virus called RSV (respiratory syncytial virus)
  • Wheezing during the first 2 years of life is often caused by bronchiolitis
  • You wonder if your child needs to be seen again

Symptoms of Bronchiolitis

  • Wheezing is the main symptom that helps with diagnosis. Wheezing is a high-pitched purring or whistling sound.
  • You can hear it best when your child is breathing out.
  • Rapid breathing at a rate of over 40 breaths per minute.
  • Tight breathing (having to work hard to push air out).
  • Coughing (may cough up very sticky mucus).
  • Fever and a runny nose often start before the breathing problems.
  • The average age for getting bronchiolitis is 6 months (range: birth to 2 years).
  • Symptoms are like asthma.
  • About 30% of children with bronchiolitis later do develop asthma. This is more likely if they have close family members with asthma. Also likely if they have bronchiolitis more than 2 times.

Cause of Bronchiolitis

  • A narrowing of the smallest airways in the lung (bronchioles) causes wheezing. This narrowing results from swelling caused by a virus.
  • The respiratory syncytial virus (RSV) causes most bronchiolitis. RSV occurs in epidemics almost every winter.
  • People do not develop life-long immunity to the RSV virus. This means they can be infected many times.

Trouble Breathing: How to Tell

Trouble breathing is a reason to see a doctor right away. Respiratory distress is the medical name for trouble breathing. Here are symptoms to worry about:

  • Struggling for each breath or short of breath.
  • Tight breathing so that your child can barely speak or cry.
  • Ribs are pulling in with each breath (called retractions).
  • Breathing has become noisy (such as wheezes).
  • Breathing is much faster than normal.
  • Lips or face turn a blue color.

Diagnosis of Bronchiolitis

  • A doctor can diagnose bronchiolitis by listening to the chest with a stethoscope.

Prevention of Spread to Others

  • Cover the nose and mouth with a tissue when coughing or sneezing.
  • Wash hands often. After coughing or sneezing are important times.

Barton Schmitt MD, FAAP
Disclaimer: this health information is for educational purposes only. You, the reader, assume full responsibility for how you choose to use it.
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