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 increasing her voice when speaking to the client may not prevent complications, but rather annoy or offend the client. The nurse should not assume that a client with a visual impairment has a hearing impairment as well unless it is confirmed by assessment or history. The nurse should speak in a normal tone and volume and identify herself by name and role.
Choice B reason: This is incorrect because lowering the bed rails before lowering the bed may increase the risk of complications, such as falls or injuries. The nurse should keep the bed rails up until the client is ready to get out of bed and lower them only when necessary. The nurse should also lock the wheels of the bed and adjust it to a comfortable height for the client.
Choice C reason: This is incorrect because using hand gestures to point to where the client will walk may not prevent complications, but rather confuse or frustrate the client. The nurse should not use visual cues or gestures that are meaningless to a client with a visual impairment. The nurse should use verbal directions and descriptions instead, such as "The restroom is on your left, about 10 steps away."
Choice D reason: This is correct because standing slightly in front and to one side of the client can prevent complications, such as collisions or falls. The nurse should guide the client by offering her arm or shoulder for support and walking slightly ahead of him or her. The nurse should also warn the client about any obstacles or changes in terrain, such as stairs, doors, or rugs.
Correct Answer is A
Explanation
Choice A Reason: This is the correct choice. Using the rule of nines, each arm accounts for 9 percent of TBSA, each leg accounts for 18 percent of TBSA, and front and back are equally divided. Therefore, burns on both sides of both arms and legs equal to (9 + 9) x 2 + (18 + 18) x 2 = 36 percent of TBSA.
Choice B Reason: This choice is incorrect. Using the rule of nines, burns on both sides of both arms and legs equal to 36 percent of TBSA, not 54 percent. To get 54 percent of TBSA, one would have to add burns on both sides of head and neck (9 percent), chest (9 percent), and abdomen (9 percent).
Choice C Reason: This choice is incorrect. Using the rule of nines, burns on both sides of both arms and legs equal to 36 percent of TBSA, not 27 percent. To get 27 percent of TBSA, one would have to subtract burns on both sides of one leg (18 percent).
Choice D Reason: This choice is incorrect. Using the rule of nines, burns on both sides of both arms and legs equal to 36 percent of TBSA, not 18 percent. To get 18 percent of TBSA, one would have to divide burns on both sides of both arms and legs by two.
Choice E Reason: This choice is incorrect. Using the rule of nines, burns on both sides of both arms and legs equal to 36 percent of TBSA, not 9 percent. To get 9 percent of TBSA, one would have to divide burns on both sides of both arms and legs by four.

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