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 D
Explanation
Choice A reason: This is incorrect because this comment does not require reporting to the client's provider. It is normal to have reduced vision and an increased risk of falling with a patch on one eye after cataract surgery. The nurse should reassure the client, provide assistance with mobility, and educate the client on safety measures.
Choice B reason: This is incorrect because this comment does not require reporting to the client's provider. It is normal to have some itching and discomfort in the eye after cataract surgery. The nurse should commend the client for not rubbing the eye, as this can cause infection or damage to the surgical site. The nurse should also administer anti-inflammatory eye drops as prescribed and instruct the client on how to apply them.
Choice C reason: This is incorrect because this comment does not require reporting to the client's provider. It is normal to have increased sensitivity to light in the eye after cataract surgery. The nurse should dim the lights in the room, provide sunglasses or a shield for the eye, and educate the client on how to protect the eye from bright light.
Choice D reason: This is the correct answer because this comment requires reporting to the client's provider. Severe pain in the eye after cataract surgery can indicate a complication such as infection, inflammation, bleeding, or increased intraocular pressure. The nurse should assess the eye for signs of redness, swelling, discharge, or bleeding, and report the findings and the pain level to the provider. The nurse should also administer analgesics as prescribed and monitor the pain relief.

Correct Answer is ["A","B","C"]
Explanation
Choice A Reason: This is a correct choice. Trying to avoid scratching is an advice that the nurse will provide to the client, as it prevents further damage and infection of the skin. Scratching can break the skin barrier and introduce bacteria or fungi into the wound, leading to inflammation and complications.
Choice B Reason: This is a correct choice. Applying a moist cool compress is an advice that the nurse will provide to the client, as it soothes and relieves itching and swelling. A moist cool compress can reduce inflammation and histamine release, which are responsible for allergic symptoms.
Choice C Reason: This is an incorrect choice. Using alcohol to cleanse the area is not an advice that the nurse will provide to the client, as it irritates and dries out the skin. Alcohol can strip away the natural oils and moisture from the skin, making it more prone to cracking and itching.
Choice D Reason: This is an incorrect choice. Using a wooden stick to scratch lesions is not an advice that the nurse will provide to the client, as it causes more harm than good. A wooden stick can injure or infect the skin, as well as spread the allergen or irritant to other areas.
Choice E Reason: This is a correct choice. Avoiding hot air is an advice that the nurse will provide to the client, as it aggravates itching and inflammation. Hot air can increase blood flow and histamine release, which are responsible for allergic symptoms. The client should also avoid hot water or showers, as they can have the same effect.
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