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?

"The CFTR protein regulates blood sugar levels in the body."

"CFTR facilitates the transport of oxygen in the bloodstream."

"The CFTR protein controls the movement of chloride ions and water across cell membranes."

"CFTR is responsible for the production of digestive enzymes in the pancreas."

Answer and Explanation

The Correct Answer is C

A) Incorrect. The CFTR protein does not regulate blood sugar levels.

B) Incorrect. CFTR does not play a role in oxygen transport in the bloodstream.

C) Correct. The primary function of the CFTR protein is to regulate chloride ion and water movement across cell membranes, which is disrupted in individuals with CF.

D) Incorrect. The production of digestive enzymes in the pancreas is not a direct function of the CFTR protein.

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Correct Answer is D

Explanation

A) Incorrect. The CFTR protein primarily functions in the respiratory and digestive systems, not the kidneys.

B) Incorrect. While CFTR plays a role in chloride secretion, its primary role is related to mucus production and chloride ion movement in the respiratory and digestive systems.

C) Incorrect. The CFTR protein is not involved in the production of red blood cells.

D) Correct. The CFTR protein is responsible for regulating mucus consistency and chloride ion transport in the respiratory and digestive systems.

A. "CF is caused by a single gene mutation, which can be inherited from one parent." B. "CF results from a combination of genetic and environmental factors." C. "CF occurs due to an X-linked genetic mutation passed from mother to daughter." D. "CF is primarily caused by exposure to respiratory pathogens during infancy."

Correct Answer is A

Explanation

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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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is discussing the role of the cystic fibrosis transmembrane conductance regulator (CFTR) protein with a patient. What is the primary function of the CFTR protein in normal physiology?

Correct Answer is D

Explanation

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?

Correct Answer is A

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?

A client with cystic fibrosis (CF) is experiencing a pulmonary exacerbation. What treatment approach should the nurse anticipate to help manage this acute worsening of symptoms?

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

A nurse is educating a client about the diagnostic evaluation of cystic fibrosis (CF). What test is commonly used to screen for CF in newborns shortly after birth?

A nurse is explaining the typical clinical manifestations of cystic fibrosis (CF) to a newly diagnosed adolescent client. Which symptom should the nurse emphasize as a hallmark of CF?

A nurse is providing education to a client with cystic fibrosis (CF). Which dietary recommendation is most appropriate for the client?

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

A nurse is assessing a client with cystic fibrosis (CF). What respiratory symptom should the nurse expect to find in a client with advanced CF-related lung disease?