It’s a disease that causes thick, sticky mucus to build up in the lungs, digestive tract, and other areas of the body. It is one of the most common types of chronic lung disease in children and young adults. It is a life-threatening disease.

This buildup of mucus leads to life-threatening lung infections and serious digestive problems. This disease can also affect the sweat glands and the male reproductive system.

Many people carry the CF gene but do not show any symptoms. This is because a person with this disease must inherit 2 defective genes, 1 from each parent. Some Americans have the CF gene. The disease is more common among people of central and northern European descent.

A blood test is done to help detect CF. The test looks for variations in the CF gene. Other tests used to diagnose CF include:

  • The immunoreactive trypsinogen (IRT) test is a standard screening test for CF in newborns. A high level of IRT suggests possible CF and requires further testing.
  • The sweat chloride test is the standard diagnostic test for CF. A high level of salt in a person’s sweat is a sign of the disease.

An early CF diagnosis and treatment plan can improve both survival and quality of life. Control and surveillance are very important. Whenever possible, care should be received in clinics with a specialty in cystic fibrosis. When children reach adulthood, they should be transferred to a specialized adult cystic fibrosis center.

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