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 ["2600"]
Explanation
The total fluid prescribed is 5,200 mL over 24 hours. We need to calculate how much fluid the client will receive in the first 8 hours.
Step-by-Step Calculation:
Step 1: Determine how much fluid is given in the first 8 hours. The rule is that half of the total fluid is administered in the first 8 hours.
- Total fluid = 5,200 mL.
- Fluid for the first 8 hours = Total fluid ÷ 2.
Write it out:
5,200 ÷ 2 = 2,600.
Result: 2,600 mL.
Correct Answer is C
Explanation
Choice A Reason: This choice is incorrect. Instilling eye drops in both eyes every hour around the clock is not an information that the nurse will provide, as it is not a recommended treatment for chronic bilateral inflammation of the eyelid margins. This condition is also known as blepharitis, which is a common and chronic disorder that causes redness, itching, burning, and crusting of the eyelids. Eye drops may be used to relieve symptoms, but not every hour or without a prescription.
Choice B Reason: This choice is incorrect. Using sterile gloves when assisting with activities of daily living is not an information that the nurse will provide, as it is not a necessary precaution for chronic bilateral inflammation of the eyelid margins. Blepharitis is not contagious or infectious, but rather caused by an overgrowth of bacteria or mites on the eyelids, or by an underlying skin condition such as seborrheic dermatitis or rosacea.
Choice C Reason: This is the correct choice. Using baby shampoo on the eyelid margins is an information that the nurse will provide, as it is a simple and effective way to clean and soothe the eyelids. Baby shampoo is gentle and non-irritating, and can help remove excess oil, debris, and scales from the eyelids. The nurse will instruct the caregiver to dilute a few drops of baby shampoo with warm water, apply it to a cotton ball or washcloth, and gently rub it along the eyelid margins. The nurse will also advise to rinse well with water and pat dry with a clean towel.
Choice D Reason: This choice is incorrect. Using a salt scrub inside the eyelid is not an information that the nurse will provide, as it is a harmful and painful method that can damage and irritate the eye. Salt scrub is abrasive and drying, and can cause corneal abrasion, infection, or inflammation. The nurse will warn the caregiver to avoid using any harsh or unapproved products on or near the eye.
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