FROM MY PT SCHOOL NOTES · MODALITIES · UNIT 3 · CHAPTER 14
What Do UVA, UVB and UVC Mean in Therapy?
Learn the radiation categories and risks without using historical teaching doses as modern instructions.
At a glance
UVA
Longer-wave ultraviolet
UVB
Greater erythema-associated effects
UVC
Germicidal applications; exposure hazard
What matters most
- UVA, UVB and UVC describe ultraviolet wavelength bands with different penetration and biological effects.
- Older PT lectures discuss ultraviolet exposure for selected skin and wound conditions; modern indications are narrow and specialized.
- Exposure response depends on skin sensitivity, medications, distance, dose and device design.
Safety and evidence limits
UV can injure eyes and skin and create long-term risk. Phototoxic medications and photosensitivity matter; these notes do not teach home use or dose calculation.
Try a clinical decision
Scenario: A patient asks whether a consumer UV lamp is a substitute for a clinician’s skin treatment. How should you answer?
Reveal the reasoning
No equivalence can be assumed. Discuss risks and the need for diagnosis and specialist-directed, device-specific care.
From my class notes: 20 UV Therapy.pdf. Current clinical context is distinguished from historical course teaching; not a procedural, dosing, or credentialing guide.
