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

"CF is caused by a dominant genetic mutation that always manifests in affected individuals."

"CF results from the presence of two recessive genetic mutations, one inherited from each parent."

"CF is due to a spontaneous genetic mutation that occurs during a person's lifetime."

"CF is exclusively caused by environmental factors and is not related to genetics."

Answer and Explanation

The Correct Answer is B

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.

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Correct Answer is C

Explanation

A) Incorrect. CF primarily affects the pancreas and small intestine, not the stomach.

B) Incorrect. While liver complications can occur in some individuals with CF, such as liver disease or cirrhosis, it is not a primary manifestation of the disease.

C) Correct. CF often results in thickened mucus obstructing the pancreatic ducts, causing pancreatic insufficiency and malabsorption of essential nutrients.

D) Incorrect. CF primarily affects the pancreas and small intestine rather than the large intestine, and chronic constipation is not a typical symptom of CF.

A. Postural drainage B. Autogenic drainage C. Positive expiratory pressure (PEP) therapy D. High-frequency chest wall oscillation (HFCWO)

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.

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

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is discussing the impact of cystic fibrosis (CF) on the digestive system with a client. Which statement accurately describes a common gastrointestinal complication of CF?

Correct Answer is C

Explanation

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

A nurse is explaining the pathophysiology of cystic fibrosis (CF) to a newly diagnosed patient. Which statement accurately describes the genetic basis of CF?

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?

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 about the diagnostic process for cystic fibrosis (CF). What diagnostic test measures the concentration of chloride ions in sweat and is often used to confirm 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 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?