Photosensitivity

Definition

Photosensitivity is an increased sensitivity of the skin to ultraviolet (UV) light, often resulting in adverse reactions such as rash or sunburn. It can be a side effect of certain medications, including those used to treat urinary and bladder disorders.

5 Must Know Facts For Your Next Test

1. Photosensitivity can be triggered by urinary anti-infectives like sulfamethoxazole/trimethoprim.
2. Symptoms of photosensitivity include redness, itching, and blistering of the skin after sun exposure.
3. Patients taking photosensitizing medications should be advised to use sunscreen and wear protective clothing.
4. Discontinuing the photosensitizing drug typically alleviates symptoms over time.
5. Nurses should educate patients about the risks of UV exposure when prescribing medications known for causing photosensitivity.

Review Questions

• What are common symptoms of photosensitivity?
• Which urinary anti-infective is commonly associated with photosensitivity?
• How can patients mitigate the risk of photosensitivity while on certain medications?

Related terms

Phototoxicity: A reaction that occurs when a drug absorbs UV light, causing damage to skin cells.

Photoallergic Reaction: An immune system response triggered by sunlight in combination with a chemical substance.

Sunscreen: A topical product that helps protect the skin from harmful effects of UV radiation.