Question

How does someone get cystic fibrosis? How is cystic fibrosis diagnosed?

A. Genetic mutation, sweat test and genetic testing
B. Environmental exposure, chest X-ray
C. Viral infection, blood culture
D. Autoimmune disorder, skin biopsy

Answer 1

Cystic fibrosis is a genetic noninfectious disease caused by a mutation in the CFTR gene, resulting in the production of thick, sticky mucus. It is diagnosed through genetic testing and sweat test.

Step-by-step explanation:

Cystic fibrosis is a genetic noninfectious disease caused by a mutation in a gene called CFTR. This mutation results in the production of faulty protein that leads to the production of thick, sticky mucus in the body.

The diagnosis of cystic fibrosis involves genetic testing to identify the presence of the CFTR gene mutation. Additionally, a sweat test is performed to measure the concentration of salt in the sweat, as individuals with cystic fibrosis have abnormally high salt levels. These two methods, genetic testing and sweat test, are key in diagnosing cystic fibrosis.