Filtered UV Inspection

Ultraviolet filtration is a light wave with a wavelength of 320-400 nm emitted by a high-pressure mercury lamp. It can be used for the auxiliary diagnosis of pigment abnormal skin disease, skin infection and porphyria disease, and a skin examination method for observing the curative effect. Basic Information Specialist classification: skin examination classification: X-ray Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: Normal when negative. Positive: Different colors of light can appear when positive. Tips: Pay attention to keeping your skin clean and not using cosmetics and medicines that absorb UV rays. Normal value The filtered UV lamp is negative. Clinical significance Abnormal result Head lice examination: dark green fluorescence, for jaundice, bright green fluorescence, for white sputum. Fungal, bacterial examination: red fluorescence, red sputum; yellow-green fluorescence, Pseudomonas aeruginosa infection. Brown-yellow fluorescence, infection with T. variabilis; green fluorescence, infection with Trichophyton. Examination of porphyrin substances: teeth of erythropoietic porphyria, blood of protoporphyrin, urine and feces of delayed porphyria, and blister fluid of some patients, red, orange red or reddish fluorescent , calf ulcer combined with bacterial infection, showing red fluorescence. Skin tumor examination: squamous cell carcinoma, showing bright red fluorescence, basal cell carcinoma, no fluorescence. Pigmented skin disease examination: white pityria, tuberous sclerosis, tinea versicolor and other pigmentation spots, easier to identify with normal skin color, freckles, pigmented dry skin disease, multiple neurofibroma, coffee stains, etc. Suspected localized hyperpigmentation, more pigmentation can be more obvious. People who need to be checked Patients with pigmented skin diseases, skin infections and porphyria. Positive results may be diseases: asbestos-like pityriasis, skin porphyria, skin disease, pediatric dwarf-retinal atrophy-deafness syndrome considerations Contraindications before examination: Pay attention to keeping the skin clean and not using cosmetics and drugs that can absorb UV rays. Requirements for inspection: Do not receive radiation directly under the lamp. Inspection process Ultraviolet light is passed through a glass device containing nickel oxide, and some fungi are visible in the dark room, which produces colored fluorescence upon irradiation with a UV lamp. This can provide an important reference for the diagnosis of superficial mycosis, especially head lice, according to the presence or absence of fluorescence and color. In addition, the lamp is also helpful for group inspections such as nurseries. Not suitable for the crowd A person who is super sensitive to ultraviolet light and has a strong adverse reaction. Adverse reactions and risks May cause redness and swelling of the skin.

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