A woman is in her seventh month of pregnancy.
She has been reporting nasal congestion and occasional epistaxis.
The nurse suspects that.

Choice A rationale:
Bronchoscopy is not the essential test for diagnosing cystic fibrosis. Bronchoscopy is a procedure that allows the healthcare provider to visualize the airways and lungs but is not the primary test for cystic fibrosis diagnosis. Cystic fibrosis is primarily diagnosed through genetic testing and sweat chloride testing.
Choice B rationale:
Serum calcium levels are not specific to cystic fibrosis diagnosis. Serum calcium levels are typically used to assess calcium balance in the body and are not directly related to cystic fibrosis diagnosis.
Choice C rationale:
Urine creatinine levels are not specific to cystic fibrosis diagnosis. Urine creatinine levels are often used to assess kidney function and muscle breakdown but are not diagnostic for cystic fibrosis.
Choice D rationale:
Sweat chloride test is essential in establishing the diagnosis of cystic fibrosis. Cystic fibrosis is characterized by the abnormal transport of chloride across cell membranes, leading to salty sweat. The sweat chloride test measures the amount of chloride in the sweat and is a key diagnostic test for cystic fibrosis. Values above a certain threshold (typically 60 mmol/L) are suggestive of cystic fibrosis.

Choice A rationale:

Drink a glass of water with a fat-free carbohydrate before getting out of bed in the morning. While staying hydrated is important, consuming a fat-free carbohydrate before getting out of bed may not be sufficient to alleviate nausea and vomiting. Eating small, frequent meals throughout the day, as suggested in choice B, can help stabilize blood sugar levels and prevent the stomach from becoming too empty, which can contribute to nausea.

Choice B rationale:

Eat small, frequent meals (every 2 to 3 hours). Eating small, frequent meals can help manage nausea and vomiting during pregnancy. Having something in the stomach at all times can prevent the stomach from becoming completely empty, reducing the likelihood of nausea. Additionally, choosing easily digestible foods can further alleviate symptoms.

Choice C rationale:

Increase her intake of high-fat foods to keep the stomach full and coated. Increasing intake of high-fat foods is not advisable, as they can be harder to digest and may exacerbate nausea. The focus should be on consuming small, low-fat, easily digestible meals throughout the day.

Choice D rationale:

Limit fluid intake throughout the day. Limiting fluid intake is not recommended, especially during pregnancy. It's important for pregnant women to stay hydrated. Dehydration can worsen nausea and may lead to other complications. Encouraging adequate fluid intake between meals can also help manage nausea.