A nurse is discussing the clinical manifestations of cystic fibrosis (CF) with a newly diagnosed adolescent client. What common respiratory symptom should the nurse emphasize as an early sign of CF?

Wheezing and chest pain

Chronic cough with thick mucus production

Blood in the urine

Digestive discomfort and diarrhea

Answer and Explanation

The Correct Answer is B

A) Incorrect. Wheezing and chest pain can occur in CF, but a chronic cough with thick mucus production is often one of the earliest respiratory symptoms.

B) Correct. A chronic cough with thick, sticky mucus is a hallmark symptom of CF due to the accumulation of mucus in the respiratory tract.

C) Incorrect. Blood in the urine is not a common early sign of CF; it may indicate other issues.

D) Incorrect. Digestive discomfort and diarrhea are more related to CF's impact on the gastrointestinal system, rather than being early respiratory symptoms.

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Correct Answer is B

Explanation

A) Incorrect. CF is an autosomal recessive genetic disorder, meaning that both copies of the CFTR gene must carry a mutation for the condition to manifest.

B) Correct. CF is caused by the inheritance of two recessive genetic mutations, one from each parent, resulting in defective CFTR protein function.

C) Incorrect. CF is primarily a genetic disorder present from birth, not one caused by spontaneous mutations during a person's lifetime.

D) Incorrect. CF is primarily a genetic disorder with well-established genetic mutations associated with its development.

A. "The CFTR protein regulates blood sugar levels in the body." B. "CFTR facilitates the transport of oxygen in the bloodstream." C. "The CFTR protein controls the movement of chloride ions and water across cell membranes." D. "CFTR is responsible for the production of digestive enzymes in the pancreas."

Correct Answer is C

Explanation

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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A nurse is discussing the clinical manifestations of cystic fibrosis (CF) with a newly diagnosed adolescent client. What common respiratory symptom should the nurse emphasize as an early sign of CF?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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

Correct Answer is B

Explanation

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?

Correct Answer is C

Explanation

A client with suspected cystic fibrosis (CF) is undergoing diagnostic testing. What diagnostic procedure is often used to confirm CF by analyzing the genetic mutations present?

A nurse is teaching a client with cystic fibrosis about airway clearance techniques. Which technique should the nurse recommend that the client perform daily?

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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?