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
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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Related Questions
Correct Answer is D
Explanation
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.
Correct Answer is B
Explanation
A) Incorrect. Frequent nosebleeds are not a hallmark symptom of CF.
B) Correct. A chronic cough with thick, sticky mucus production is a hallmark feature of CF due to the accumulation of mucus in the respiratory tract.
C) Incorrect. Rapid weight gain is not a typical symptom of CF; in fact, individuals with CF often struggle with poor weight gain and malnutrition.
D) Incorrect. High blood pressure is not a characteristic symptom of CF.
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