The client inquires what the positive result from the potassium hydroxide (KOH) test indicates. Which of the following is an accurate response by the nurse?
You have a virus.
You have a fungal infection.
You have a bacterial infection.
You have cancer.
The Correct Answer is B
Choice A Reason: A virus is not detected by the KOH test, which is used to diagnose fungal infections of the skin, hair, or nails. A virus can be detected by other tests, such as polymerase chain reaction (PCR) or viral culture.
Choice B Reason: A fungal infection is detected by the KOH test, which dissolves the skin cells and leaves behind the fungal elements that can be seen under a microscope. A fungal infection can cause symptoms such as itching, scaling, redness, or blisters.
Choice C Reason: A bacterial infection is not detected by the KOH test, which is specific for fungi. A bacterial infection can be detected by other tests, such as gram stain or culture.
Choice D Reason: Cancer is not detected by the KOH test, which is not a screening tool for malignancy. Cancer can be detected by other tests, such as biopsy or imaging.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason: The test does not assess for sun protection factor, but rather for contact dermatitis. Sun protection factor is a measure of how well a sunscreen protects the skin from ultraviolet radiation, which can cause sunburn and skin damage.
Choice B Reason: The test is not inconclusive, but rather positive for some allergens and negative for others. The test involves applying small patches of different substances to the skin and observing for any reactions after 48 hours.
Choice C Reason: This is the correct choice. The presence of erythema indicates you are allergic to the allergen, as it shows inflammation and irritation of the skin due to an immune response. Erythema is redness of the skin that can be accompanied by itching, swelling, or blisters.
Choice D Reason: The areas that did not turn red do not indicate low risk for skin cancer, but rather no reaction to the allergen. Skin cancer is a malignant growth of abnormal cells in the skin that can be caused by various factors, such as genetic mutations, exposure to carcinogens, or immunosuppression.
Correct Answer is C
Explanation
Choice A Reason: Obtaining the client's blood glucose every 12 hr is not enough, as the nurse should monitor it more frequently, at least every 4 to 6 hr, to prevent hyperglycemia or hypoglycemia. TPN is a high-glucose solution that can affect the blood sugar levels.
Choice B Reason: Changing the IV site dressing every 4 days is not enough, as the nurse should change it daily or as needed to prevent infection. TPN is a high-risk solution that can introduce microorganisms into the bloodstream.
Choice C Reason: This is the correct choice. Changing the IV tubing every 24 hr is recommended to prevent infection and maintain sterility. TPN is a complex solution that can support bacterial growth and contamination.
Choice D Reason: Weighing the client every other day is not enough, as the nurse should weigh the client daily to evaluate fluid balance and nutritional status. TPN can cause fluid retention or depletion, as well as weight gain or loss.
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