The nurse is explaining to a patient the purpose of certain lab tests that have been ordered.
A carcinoembryonic antigen (CEA) test was ordered and the patient is asking what this value will indicate. Which of the following is correct?
CEA is a chemotherapy drug used to treat cancer.
CEA is a surgical procedure used to remove cancerous tumors.
CEA is a tumor suppressor gene that inhibits the growth of cancer cells.
CEA is a blood test used to detect and monitor certain types of cancer.
The Correct Answer is D
Choice A rationale
CEA is not a chemotherapy drug. Chemotherapy drugs are medications used to treat cancer, while CEA is a protein that can be measured in the blood.
Choice B rationale
CEA is not a surgical procedure. It’s a type of protein in the body that can be measured through a blood test.
Choice C rationale
CEA is not a tumor suppressor gene. Tumor suppressor genes are genes that regulate cell division and prevent the formation of tumors, while CEA is a protein that can be present in higher amounts in people with certain types of cancer.
Choice D rationale
CEA is a blood test used to detect and monitor certain types of cancer. It’s often used in people who’ve been previously diagnosed with certain types of cancer, most commonly colorectal cancer.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Consuming large meals can exacerbate GERD symptoms. Smaller, more frequent meals are recommended to reduce the volume of food in the stomach at any one time, thereby reducing the pressure on the lower esophageal sphincter.
Choice B rationale
Identifying and avoiding foods that cause discomfort is a key strategy in managing GERD. Foods that commonly trigger GERD symptoms include fatty foods, spicy foods, acidic foods, and caffeine.
Choice C rationale
Using pillows to elevate the head and upper body during sleep can help prevent nighttime GERD symptoms. Gravity helps keep stomach acid in the stomach, reducing the chance of it flowing back into the esophagus.
Choice D rationale
Lying down after a meal can exacerbate GERD symptoms. It is recommended to wait at least three hours after eating before lying down.
Correct Answer is B
Explanation
Choice A rationale
Increasing fluid intake after a barium swallow test is recommended. This helps to flush the barium out of the system and can help to prevent constipation.
Choice B rationale
Stools will not be normal in color after a barium swallow test. It is normal for bowel movements to appear lighter in color, or even white, after a barium study.
Choice C rationale
The barium swallow test does examine the esophagus, stomach, duodenum, and jejunum. The barium coats the lining of these organs, making them easier to see on an X-ray.
Choice D rationale
Patients may need to take laxatives to prevent constipation from the barium. Barium can slow down the digestive system, so taking a laxative can help to keep things moving.
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