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?

"CF is caused by an extra chromosome, leading to genetic imbalance."

"In CF, there is a duplication of the CFTR gene on chromosome 7."

"CF results from a mutation in the CFTR gene, which codes for a dysfunctional chloride channel."

"CF is characterized by the absence of the CFTR gene in affected individuals."

Answer and Explanation

The Correct Answer is C

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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Correct Answer is B

Explanation

A) Incorrect. Frequent nosebleeds are not common gastrointestinal symptoms in CF.

B) Correct. Abdominal pain and bloating are common gastrointestinal symptoms in CF, often due to the impact of thickened mucus on the pancreas and intestines.

C) Incorrect. Rapid weight gain is not a typical gastrointestinal symptom in CF; individuals with CF often struggle with poor weight gain and malnutrition.

D) Incorrect. Muscle weakness is not a common gastrointestinal symptom in CF but may be associated with other complications.

A. Coughing forcefully B. Controlled breathing exercises C. Huff coughing D. Exercising vigorously

Correct Answer is C

Explanation

A) Incorrect. While coughing is important, huff coughing is a more effective and less strenuous airway clearance technique for CF patients.

B) Incorrect. Controlled breathing exercises may help with relaxation but are not the primary airway clearance technique.

C) Correct. Huff coughing is a technique where the client takes a deep breath and forcefully exhales in short bursts, helping to move mucus from the airways.

D) Incorrect. Vigorous exercise is beneficial for CF patients but should not replace specific airway clearance techniques.

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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?

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Naxlex Comprehensive Predictor Exams

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

Correct Answer is B

Explanation

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

Correct Answer is C

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?

A nurse is discussing the pathophysiological consequences of cystic fibrosis (CF) with a client. Which of the following best describes how CF affects the respiratory system?

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 discharge instructions to the parents of a child with cystic fibrosis. Which statement by the parents indicates a need for further education?

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?

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?

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?

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?