A nurse is collecting data on a patient who is experiencing oxygen toxicity.
What symptoms should the nurse anticipate?
Muscle twitching
Redness of the face
Swelling around the eyes
A metallic taste in the mouth
The Correct Answer is A
Choice A rationale:
Muscle twitching is a symptom of oxygen toxicity. Oxygen toxicity is a condition resulting from the harmful effects of breathing molecular oxygen (O2) at increased partial pressures. Severe cases can result in cell damage and death, with effects most often seen in the central nervous system, lungs, and eyes. Central nervous system symptoms can include muscle twitching.

Choice B rationale:
Redness of the face is not typically associated with oxygen toxicity. Oxygen toxicity primarily affects the central nervous system, lungs, and eyes. It does not typically cause redness of the face.
Choice C rationale:
Swelling around the eyes is not a common symptom of oxygen toxicity. The primary effects of oxygen toxicity are seen in the central nervous system, lungs, and eyes. However, this does not typically manifest as swelling around the eyes.
Choice D rationale:
A metallic taste in the mouth is not a known symptom of oxygen toxicity. Oxygen toxicity is a condition that results from the harmful effects of breathing molecular oxygen (O2) at increased partial pressures. It primarily affects the central nervous system, lungs, and eyes, but a metallic taste in the mouth is not a recognized symptom.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["D"]
Explanation
Choice A rationale:
Petroleum-based ointments like Vaseline are not recommended for moisturizing lips, especially for patients on oxygen therapy. This is because petroleum jelly is not effective at restoring moisture once it’s been lost. Moreover, it can feel heavy and slippery on the lips, and it’s not very eco-friendly.
Choice B rationale:
Oxygen tanks should be kept at a safe distance from heat sources, including electric stoves. However, the recommended distance is not 4 feet but rather at least 5-10 feet away. This is to minimize the risk of fire or combustion.
Choice C rationale:
Wool blankets are not recommended when using oxygen. Wool can cause a spark which can be dangerous around oxygen. It’s important to avoid anything that may cause a spark around home oxygen, including electric heaters, electric blankets, electric razors, hair dryers, or friction toys.
Choice D rationale:
Oxygen tanks should always be stored upright. This prevents any strain on the valves or other components and reduces the risk of damage and potential gas leaks.
Correct Answer is D
Explanation
Choice A rationale:
The stool guaiac test does not check for bacteria in the feces. This test is used to detect hidden (occult) blood in a stool sample. It is the most common type of fecal occult blood test (FOBT)1.
Choice B rationale:
The stool guaiac test does not check for fat in the feces. The presence of fat in the feces is usually checked by a different test called a fecal fat test. The stool guaiac test is specifically designed to detect the presence of hidden blood in the stool.
Choice C rationale:
The stool guaiac test does not check for parasites in the feces. Parasites are typically detected using a stool ova and parasites (O&P) test. The stool guaiac test is used to detect hidden blood in the stool, which could be an indication of various conditions, including colon cancer or polyps in the colon or rectum.
Choice D rationale:
The stool guaiac test checks for hidden blood in the feces. This is the correct answer. The test can find blood even if you cannot see it yourself. Occult blood in the stool may indicate colon cancer or polyps in the colon or rectum, though not all cancers or polyps bleed. If blood is detected through a fecal occult blood test, additional tests may be needed to determine the source of the bleeding. The stool guaiac test can only detect the presence or absence of blood — it can’t determine what’s causing the bleeding.
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