| ENCYCLOPEDIA INDEX |
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Injury Disease Nutrition Poison Symptoms Surgery Test |
| 1 2 5 A B C D E F G H I J K L M N O P Q R S T U V W X |
Woods lamp |
| Overview Risks Results |
| Alternative Names: |
| Black light test; Ultraviolet light test |
| What the risks are: |
| There are no risks, but avoid looking directly into the ultraviolet light, as you avoid looking into the sun. |
| Special considerations: |
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Do not wash before the test, because that may cause a false negative result. A room that is not dark enough may also alter results. Other materials may also glow. For example, some deodorants, make-ups, soaps, and even lint may be visible with the Wood's lamp. Not all infections can be detected with the light. Some species of fungi and bacteria do not contain fluorescent chemicals. |
Wood's lamp test - of the scalp |
Wood's lamp illumination |
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