A nurse is caring for a client who has anemia and is being evaluated to determine the cause. The nurse has an order for a guaiac stool test. The nurse understands the purpose of the test is to check the stool for which of the following substances?
Steatorrhea
Bacteria
Parasites
Blood
The Correct Answer is D
Choice A reason:
Steatorrhea is the presence of excess fat in the stool, which indicates malabsorption issues. However, it is not what a guaiac stool test is designed to detect. Specialized fat stains and tests are used to identify steatorrhea.
Choice B reason:
Bacteria presence in stool is usually evaluated through stool culture tests, not the guaiac stool test. A stool culture helps identify bacterial infections in the gastrointestinal tract.
Choice C reason:
Parasites in stool are detected using ova and parasite (O&P) exams, not the guaiac stool test. The O&P exam identifies microscopic parasites and their eggs.
Choice D reason:
The guaiac stool test is used to detect the presence of occult (hidden) blood in the stool. It helps identify gastrointestinal bleeding that is not visible to the naked eye, which can be a sign of conditions such as ulcers, polyps, or colorectal cancer.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
Oxymetazoline is not used for maintenance treatment of heart failure. It is a topical decongestant used to relieve nasal congestion and is not indicated for cardiac conditions.
Choice B reason:
Oxymetazoline provides rapid relief of nasal congestion and does not take weeks to show effects. Its action is almost immediate, making it effective for short-term use.
Choice C reason:
Limiting the use of oxymetazoline to 3 days is crucial to prevent rebound nasal congestion, a condition where the nasal passages become more congested once the medication is stopped. Overuse can lead to dependency and worsening congestion.
Choice D reason:
Oxymetazoline does not typically cause drowsiness, so taking it at bedtime is not necessary. This statement does not apply to the pharmacological effects of this medication.
Correct Answer is C
Explanation
Choice A reason: A WBC count of 8,000/mm³ falls within the normal range (4,000-11,000/mm³) and does not indicate a specific risk for delayed wound healing. It helps assess the immune response but is not a direct marker for nutrition or tissue repair.
Choice B reason: A hemoglobin level of 16 g/dL is within the normal range (13.8-17.2 g/dL for men, 12.1-15.1 g/dL for women) and indicates adequate oxygen-carrying capacity. While essential for overall health, it does not directly correlate with the risk of delayed wound healing in this context.
Choice C reason: This is the correct answer. Serum albumin levels are a marker of nutritional status. A level of 3.2 g/dL is on the lower side of the normal range (3.5-5.0 g/dL) and indicates potential malnutrition, which can impair wound healing by limiting the availability of necessary proteins and nutrients for tissue repair.
Choice D reason: An INR (International Normalized Ratio) of 0.9 is within the normal range (0.8-1.2) and reflects normal blood clotting. While important for understanding coagulation status, it does not indicate a direct risk for delayed wound healing related to nutrition or protein levels.
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