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?

Sweat chloride test

Chest X-ray

Pulmonary function test

Complete blood count (CBC)

Answer and Explanation

The Correct Answer is A

A) Correct. The sweat chloride test is commonly used for newborn screening for CF. Elevated sweat chloride levels are indicative of CF.

B) Incorrect. Chest X-rays may be used to assess lung changes in individuals with CF but are not a primary diagnostic test, especially in newborns.

C) Incorrect. Pulmonary function tests are used to evaluate lung function but are not typically performed as part of newborn screening for CF.

D) Incorrect. A complete blood count (CBC) is a general blood test and is not specific for CF diagnosis.

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Correct Answer is C

Explanation

A) Incorrect. Meconium ileus is a complication typically seen in newborns with CF, not in adults.

B) Incorrect. Failure to thrive is a concern in infants and young children with CF but not typically in adults.

C) Correct. Osteoporosis is a common complication in adults with CF due to malabsorption of calcium and vitamin D, chronic inflammation, and reduced physical activity.

D) Incorrect. Rapid growth and development are typically observed in adolescents, not as a complication but as a part of normal growth.

A. "CF is caused by a dominant genetic mutation that always manifests in affected individuals." B. "CF results from the presence of two recessive genetic mutations, one inherited from each parent." C. "CF is due to a spontaneous genetic mutation that occurs during a person's lifetime." D. "CF is exclusively caused by environmental factors and is not related to genetics."

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.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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?

Correct Answer is C

Explanation

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

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