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 D

Explanation

A) Incorrect. Postural drainage involves positioning the body to help drain mucus but does not use a mechanical device.

B) Incorrect. Autogenic drainage is a technique that involves controlled breathing and airflow, not a mechanical device.

C) Incorrect. PEP therapy uses a device to provide positive pressure during exhalation but is different from HFCWO.

D) Correct. High-frequency chest wall oscillation (HFCWO) involves using a mechanical device to deliver oscillations to the chest wall, helping to mobilize and clear mucus from the airways.

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

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is educating a client with cystic fibrosis (CF) about airway clearance techniques. Which of the following airway clearance methods involves the use of a mechanical device to deliver high-frequency chest wall oscillations?

Correct Answer is D

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 nurse is discussing pancreatic enzyme replacement therapy (PERT) with a client who has cystic fibrosis (CF). What should the nurse emphasize as the purpose of PERT in CF management?

A nurse is caring for a child with cystic fibrosis (CF). What gastrointestinal symptom commonly observed in CF should the nurse be vigilant for?

A nurse is educating a client with cystic fibrosis (CF) about potential complications of the disease. Which of the following should the nurse mention as a common complication of CF in adults?

A client with cystic fibrosis (CF) asks the nurse about the impact of CF on the respiratory system. What response by the nurse accurately describes the respiratory complications associated with CF?

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 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 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 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?