A client arrives to the emergency department complaining of acute onset of nausea with projectile vomiting. The nurse's assessment findings include high-pitched sounds in the left upper quadrant. Which gastrointestinal disorder is consistent with these findings?

Choice A reason: This is correct because the lesion on the child's head is most likely a hemangioma, which is a benign tumor of blood vessels that appears as a red or purple mark on the skin. Hemangiomas are common in newborns and usually grow during the first year of life, then shrink and fade over several years. The nurse should reassure the client that hemangiomas are harmless and do not require treatment unless they interfere with vision, breathing, or feeding.
Choice B reason: This is incorrect because the lesion on the child's head will not spread, but rather grow and shrink within a limited area. The nurse should not alarm the client by suggesting that the lesion will spread to other parts of the body or become malignant. The nurse should explain that hemangiomas are not contagious or infectious and do not affect the child's overall health or development.
Choice C reason: This is incorrect because the lesion on the child's head is not caused by scarring from the birth process, but rather by abnormal growth of blood vessels in the skin. The nurse should not confuse or misinform the client about the cause of the lesion. The nurse should explain that hemangiomas are not related to trauma, infection, or genetics, but rather to unknown factors that influence blood vessel formation during fetal development.
Choice D reason: This is incorrect because the lesion on the child's head is not a precancerous lesion and does not need a referral to a dermatologist. The nurse should not scare or mislead the client by suggesting that the lesion is a sign of cancer or requires further evaluation or treatment. The nurse should explain that hemangiomas are benign and usually resolve on their own without any complications or sequelae.

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.