A nurse is educating a client with cystic fibrosis (CF) about the importance of airway clearance techniques. What should the nurse explain as the primary goal of these techniques?

To improve lung capacity

To prevent respiratory infections

To maintain electrolyte balance

To clear mucus and secretions from the airways

Answer and Explanation

The Correct Answer is D

A) Incorrect. While airway clearance techniques can help maintain lung function, their primary goal is not to improve lung capacity.

B) Incorrect. Preventing respiratory infections is an important aspect of CF care, but it is not the primary goal of airway clearance techniques.

C) Incorrect. Maintaining electrolyte balance is important in CF, but it is not the primary goal of airway clearance techniques.

D) Correct. The primary goal of airway clearance techniques in CF is to mobilize and clear mucus and secretions from the airways, improving breathing and reducing the risk of infection.

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Correct Answer is D

Explanation

A) Incorrect. The sweat chloride test is used for CF diagnosis, but it does not analyze genetic mutations.

B) Incorrect. Chest X-rays are used to assess lung changes but do not directly confirm CF by analyzing genetic mutations.

C) Incorrect. Pulmonary function tests assess lung function but do not confirm CF by analyzing genetic mutations.

D) Correct. Genetic testing is a diagnostic procedure commonly used to confirm CF by analyzing the specific CF gene mutations present in an individual.

A. "CF is caused by an extra chromosome, leading to genetic imbalance." B. "In CF, there is a duplication of the CFTR gene on chromosome 7." C. "CF results from a mutation in the CFTR gene, which codes for a dysfunctional chloride channel." D. "CF is characterized by the absence of the CFTR gene in affected individuals."

Correct Answer is C

Explanation

A) Incorrect. CF is not caused by an extra chromosome; it is a genetic disorder resulting from mutations in specific genes.

B) Incorrect. CF is not characterized by a duplication of the CFTR gene but rather by various mutations in this gene.

C) Correct. CF is primarily caused by mutations in the CFTR (cystic fibrosis transmembrane conductance regulator) gene, leading to the production of dysfunctional chloride channels.

D) Incorrect. CF is not characterized by the absence of the CFTR gene; instead, it involves various mutations in this gene.

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A nurse is educating a client with cystic fibrosis (CF) about the importance of airway clearance techniques. What should the nurse explain as the primary goal of these techniques?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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?

Correct Answer is D

Explanation

A nurse is discussing the underlying genetic defect in cystic fibrosis (CF) with a client. Which of the following statements accurately describes the primary genetic abnormality in CF?

Correct Answer is C

Explanation

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