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 B
Explanation
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.
Correct Answer is D
Explanation
Choice A reason: This is incorrect because applying the medication when you are experiencing eye pain can be ineffective or harmful for treating open-angle glaucoma. Open-angle glaucoma is a chronic condition that causes increased pressure inside the eye and damage to the optic nerve, which can lead to vision loss. Eye pain is not a common symptom of open-angle glaucoma, but rather an indication of acute angle closure glaucoma, which is a medical emergency that requires immediate treatment. The nurse should instruct the client to apply the medication as prescribed, regardless of pain level, and seek medical attention if they experience severe eye pain, headache, nausea, or blurred vision.
Choice B reason: This is incorrect because using the medication only until the intraocular pressure returns to normal can cause recurrence or worsening of open-angle glaucoma. Intraocular pressure is the pressure inside
the eye that can affect eye health and vision. Normal intraocular pressure ranges from 10 to 21 mmHg, but it can vary depending on age, time of day, or other factors. The nurse should instruct the client to monitor their intraocular pressure regularly and report any changes to their provider, but not to stop using
the medication without consulting their provider first.
Choice C reason: This is incorrect because using the medication for approximately 10 days, then gradually tapering off can cause rebound or adverse effects of open-angle glaucoma. The medication for open-angle glaucoma can be either beta-blockers, such as timolol, or cholinergic agents, such as pilocarpine, which work by reducing fluid production or increasing fluid drainage in the eye. The nurse should instruct the client to follow their provider's instructions on how long and how much to use the medication and not to change or discontinue it abruptly without their provider's approval.
Choice D reason: This is correct because applying the medication on a regular schedule for the rest of your life can help control and prevent the progression of open-angle glaucoma. Open-angle glaucoma is a lifelong condition that requires consistent and continuous treatment to maintain normal intraocular pressure and prevent vision loss. The nurse should instruct the client to apply the medication at the same time every day and not to miss or skip any doses. The nurse should also teach the client how to store, handle, and administer the medication properly and safely.
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