Nokea
A patient has sought care because of recent dark-colored stools. As a result, a fecal occult blood test has been ordered. The nurse should instruct the patient to avoid which of the following prior to collecting a stool sample?
- A. NSAIDs
- B. Acetaminophen
- C. OTC vitamin D supplements
- D. Fiber supplements
Correct Answer: A
Rationale: NSAIDs can cause a false-positive fecal occult blood test. Acetaminophen, vitamin D supplements, and fiber supplements do not have this effect.
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A nurse is assessing the abdomen of a patient just admitted to the unit with a suspected GI disease. Inspection reveals several diverse lesions on the patient's abdomen. How should the nurse best interpret this assessment finding?
- A. Abdominal lesions are usually due to age-related skin changes.
- B. Integumentary diseases often cause GI disorders.
- C. GI diseases often produce skin changes.
- D. The patient needs to be assessed for self-harm.
Correct Answer: C
Rationale: Abdominal lesions are of particular importance, because GI diseases often produce skin changes. Skin problems do not normally cause GI disorders. Age-related skin changes do not have a pronounced effect on the skin of the abdomen when compared to other skin surfaces. Self-harm is a less likely explanation for skin lesions on the abdomen.
A nurse is performing an abdominal assessment of an older adult patient. When collecting and analyzing data, the nurse should be cognizant of what age-related change in gastrointestinal structure and function?
- A. Increased gastric motility
- B. Decreased gastric pH
- C. Increased gag reflex
- D. Decreased mucus secretion
Correct Answer: D
Rationale: Older adults tend to secrete less mucus than younger adults. Gastric motility slows with age and gastric pH rises due to decreased secretion of gastric acids. Older adults tend to have a blunted gag reflex compared to younger adults.
Probably the most widely used in-office or at-home occult blood test is the Hemoccult II. The patient has come to the clinic because he thinks there is blood in his stool. When you reviewed his medications, you noted he is on antihypertensive drugs and NSAIDs for early arthritic pain. You are sending the patient home with the supplies necessary to perform 2 hemoccult tests on his stool and mail the samples back to the clinic. What instruction would you give this patient?
- A. Take all your medications as usual.
- B. Take all your medications except the antihypertensive medications.
- C. Don't eat highly acidic foods 72 hours before you start the test.
- D. Avoid vitamin C for 72 hours before you start the test.
Correct Answer: D
Rationale: Red meats, aspirin, nonsteroidal anti-inflammatory drugs, turnips, and horseradish should be avoided for 72 hours prior to the study, because they may cause a false-positive result. Also, ingestion of vitamin C from supplements or foods can cause a false-negative result. Acidic foods do not need to be avoided.
A clinic patient has described recent dark-colored stools; the nurse recognizes the need for fecal occult blood testing (FOBT). What aspect of the patient's current health status would contraindicate FOBT?
- A. Gastroesophageal reflux disease (GERD)
- B. Peptic ulcers
- C. Hemorrhoids
- D. Recurrent nausea and vomiting
Correct Answer: C
Rationale: FOBT should not be performed when there is hemorrhoidal bleeding. GERD, peptic ulcers and nausea and vomiting do not contraindicate the use of FOBT as a diagnostic tool.
A patient who has been experiencing changes in his bowel function is scheduled for a barium enema. What instruction should the nurse provide for postprocedure recovery?
- A. Remain NPO for 6 hours postprocedure.
- B. Administer a Fleet enema to cleanse the bowel of the barium.
- C. Increase fluid intake to evacuate the barium.
- D. Avoid dairy products for 24 hours postprocedure.
Correct Answer: C
Rationale: Adequate fluid intake is necessary to rid the GI tract of barium. The patient must not remain NPO after the test and enemas are not used to cleanse the bowel of barium. There is no need to avoid dairy products.