A nurse is educating a client about the etiology of cystic fibrosis (CF). Which statement by the client accurately describes the genetic basis of CF?

"CF is caused by a single gene mutation, which can be inherited from one parent."

"CF results from a combination of genetic and environmental factors."

"CF occurs due to an X-linked genetic mutation passed from mother to daughter."

"CF is primarily caused by exposure to respiratory pathogens during infancy."

Answer and Explanation

The Correct Answer is A

A) Correct. CF is primarily caused by mutations in a single gene, the CFTR gene, and it can be inherited from one parent, resulting in a carrier state, or from both parents for the disease to manifest.

B) Incorrect. While genetic factors are the primary cause of CF, environmental factors can exacerbate symptoms but are not the root cause.

C) Incorrect. CF is not an X-linked genetic disorder; it follows an autosomal recessive pattern of inheritance.

D) Incorrect. CF is not caused by exposure to respiratory pathogens during infancy; it is primarily a genetic disorder.

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Correct Answer is B

Explanation

A) Incorrect. Genetic testing for CF is important for individuals of all ages, not limited to infants.

B) Correct. Genetic testing is a crucial diagnostic tool for confirming the presence of CF gene mutations, regardless of the individual's age.

C) Incorrect. Genetic testing is primarily used for diagnosis, not for determining the severity of CF symptoms.

D) Incorrect. Genetic testing is not reserved solely for family members of individuals already diagnosed with CF; it is used for diagnostic purposes in suspected cases of CF.

A. Genetic testing B. Sweat chloride test C. Chest X-ray D. Pulmonary function test

Correct Answer is D

Explanation

A) Incorrect. Genetic testing is used to confirm the presence of CF gene mutations but is not a measure of lung function.

B) Incorrect. The sweat chloride test is used for CF diagnosis and may not be performed regularly to monitor lung function.

C) Incorrect. Chest X-rays may be used to assess lung changes in individuals with CF, but they do not directly measure lung function.

D) Correct. Pulmonary function tests are commonly performed to assess lung function, monitor disease progression, and guide treatment in individuals with CF.

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A nurse is educating a client about the etiology of cystic fibrosis (CF). Which statement by the client accurately describes the genetic basis of CF?

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Naxlex Comprehensive Predictor Exams

A nurse is discussing the role of genetic testing in cystic fibrosis (CF) diagnosis with a client. What should the nurse emphasize regarding the importance of genetic testing for CF?

Correct Answer is B

Explanation

A nurse is discussing the diagnostic evaluation of cystic fibrosis (CF) with a client. What test is commonly performed to assess lung function and monitor disease progression in individuals with CF?

Correct Answer is D

Explanation

A nurse is discussing the risk factors for cystic fibrosis (CF) with a client. Which statement accurately identifies a risk factor associated with CF?

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A nurse is explaining the role of the CFTR protein in cystic fibrosis to a client. Which function of the CFTR protein should the nurse highlight?

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A nurse is explaining the diagnostic process for cystic fibrosis (CF) to a client and their family. What initial diagnostic test is often used to assess CF in infants who exhibit symptoms suggestive of the condition?

A nurse is educating a client about the inheritance pattern of cystic fibrosis (CF). What information should the nurse provide regarding the likelihood of a child developing CF if both parents are carriers?

A client is inquiring about the genetic basis of cystic fibrosis (CF). Which statement by the nurse provides an accurate explanation?