MedicalTerminology DB
General Medical Terms

phototesting

Meaning of phototesting: Special tests used to measure the reaction of the skin to ultraviolet radiation.

Definition of phototesting

Special tests used to measure the reaction of the skin to ultraviolet radiation. Phototesting is being used to see if drugs taken by mouth to treat cancer make the skin more sensitive to ultraviolet radiation.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.