A nurse is teaching a client about foods to avoid before having an occult blood test of the stool. Which of the following foods should the nurse instruct the client to avoid?
Potatoes
Red meat
Yogurt
Apples
The Correct Answer is B
Choice A reason: Potatoes do not contain substances that cause false-positive occult blood tests. They are low in heme and do not mimic blood in stool, making them safe to consume before testing.
Choice B reason: Red meat contains heme, which can cause false-positive results in occult blood tests by mimicking blood. Avoiding red meat for 48–72 hours ensures test accuracy, making this the correct choice.
Choice C reason: Yogurt lacks heme or oxidizing agents that interfere with occult blood tests. It is a safe food choice before testing, as it does not affect results, making this incorrect.
Choice D reason: Apples do not typically cause false positives, though some fruits with peroxidase (e.g., turnips) might. Apples are generally safe, making this less critical to avoid than red meat.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Extra incandescent lighting improves visibility, reducing fall risk, especially for patients with impaired vision or mobility. Adequate lighting illuminates hazards, enhancing environmental safety, making this the best advice for a safer home.
Choice B reason: Throw rugs increase tripping hazards, particularly for mobility-impaired patients. They can slide or bunch, leading to falls, a leading injury cause, making this an unsafe recommendation for improving home safety.
Choice C reason: Painting the floor black and white may create visual confusion, especially for patients with cognitive or visual impairments, increasing fall risk. Contrasting colors may disorient, making this ineffective and hazardous.
Choice D reason: Handrails painted the same color as walls blend into the background, reducing visibility. Contrasting colors ensure handrails are noticeable, aiding safe mobility, making this an incorrect recommendation for safety.
Correct Answer is C
Explanation
Choice A reason: A 3-inch needle is too long for most IM injections; 1–1.5 inches is standard for adults. This risks hitting bone or tissue, making this incorrect for safe injection.
Choice B reason: IM injections require a 90-degree angle to reach muscle. A 45-degree angle is for subcutaneous injections, making this incorrect for intramuscular administration technique.
Choice C reason: Aspirating before injecting ensures the needle is not in a blood vessel, preventing intravenous administration. This safety step is standard for IM injections, making it correct.
Choice D reason: Massaging the site can cause medication leakage or tissue damage. Gentle pressure is preferred, making massage incorrect for post-injection care in IM administration.
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