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?

Genetic testing

Chest X-ray

Pulmonary function test

Sweat chloride test

Answer and Explanation

The Correct Answer is D

A) Incorrect. Genetic testing is used to confirm CF but does not directly measure chloride ion concentration in sweat.

B) Incorrect. Chest X-rays may be used to assess lung changes in individuals with CF but are not used to measure chloride ion concentration in sweat.

C) Incorrect. Pulmonary function tests assess lung function but do not directly measure chloride ion concentration in sweat.

D) Correct. The sweat chloride test measures the concentration of chloride ions in sweat and is commonly used to confirm CF. Elevated sweat chloride levels are indicative of CF.

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Correct Answer is B

Explanation

A) Incorrect. While inflammation can be a consequence of CF, it is not the primary cause of airway constriction.

B) Correct. In CF, thickened mucus accumulates in the airways, leading to chronic inflammation, recurrent infections, and progressive lung damage.

C) Incorrect. CF does not result in the overproduction of surfactant, which is a substance that helps reduce surface tension in the lungs.

D) Incorrect. The CFTR protein does not produce oxygen but rather regulates chloride ion and water transport in the lungs

A. "CF primarily affects the stomach, leading to frequent episodes of gastritis." B. "CF causes inflammation of the liver, resulting in jaundice and liver failure." C. "CF can obstruct the pancreatic ducts, leading to pancreatic insufficiency and malabsorption of nutrients." D. "CF mainly affects the large intestine, leading to chronic constipation."

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.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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?

Correct Answer is B

Explanation

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

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