A nurse is reinforcing teaching with a client about increasing her intake of fiber. Which of the following foods should the nurse encourage the client to eat?

Choice A reason: Taking ibuprofen or other nonsteroidal anti-inflammatory drugs (NSAIDs) can cause a false-positive result on a fecal occult blood screening test, as they can irritate the gastrointestinal mucosa and cause bleeding.

Choice B reason: Having a hemorrhoidectomy 1 year ago is unlikely to cause a false-positive result on a fecal occult blood screening test, as hemorrhoids are usually a source of bright red blood that can be seen with naked eye, not occult blood that requires chemical detection.

Choice C reason: Having a history of breast cancer is not related to a false-positive result on a fecal occult blood screening test, as breast cancer does not affect the gastrointestinal tract or cause bleeding in stool.

Choice D reason: Consuming citrus juice 3 days before the test is not likely to cause a false-positive result on a fecal occult blood screening test, as citrus juice does not contain any substances that can interfere with the chemical reaction of the test. However, consuming red meat, raw vegetables, vitamin C supplements, or iron supplements within 3 days before the test can cause false-negative results, as they can mask or degrade occult blood in stool.

Choice A reason: Difficulty swallowing is a sign of anaphylaxis, which is a severe allergic reaction that can cause swelling of the throat and tongue, leading to airway obstruction and respiratory distress.

Choice B reason: Petechial rash on the abdomen is not a sign of anaphylaxis, but rather a sign of thrombocytopenia, which is a low platelet count that can cause bleeding under the skin.

Choice C reason: Hypertension is not a sign of anaphylaxis, but rather a sign of high blood pressure, which can be caused by various factors such as stress, pain, or kidney disease.

Choice D reason: Bilateral tinnitus is not a sign of anaphylaxis, but rather a sign of hearing loss or damage, which can be caused by exposure to loud noise, ear infection, or medication side effects.