CLT CLT Wound Healing & Tissue Repair 1

Question 1

Which phase of wound healing involves the formation of a fibrin clot and platelet aggregation?

Accepted Answer

Hemostasis phase

Answer

Hemostasis is the first wound healing phase, characterized by platelet aggregation and fibrin clot formation to stop bleeding immediately after tissue injury.

Question 2

How does laser therapy (photobiomodulation) accelerate the inflammatory phase of wound healing?

Accepted Answer

By modulating cytokine release and enhancing macrophage activity to resolve inflammation faster

Answer

Photobiomodulation modulates pro- and anti-inflammatory cytokines and stimulates macrophage phagocytosis, helping the inflammatory phase resolve more efficiently.

Question 3

During the proliferative phase of wound healing, which cell type is primarily responsible for depositing new collagen?

Accepted Answer

Fibroblasts

Answer

Fibroblasts are the principal cells in the proliferative phase, synthesizing and depositing collagen to form the new extracellular matrix that fills the wound.

Question 4

What is the role of angiogenesis in wound healing, and how does laser therapy support it?

Accepted Answer

Angiogenesis forms new blood vessels to supply oxygen; laser stimulates VEGF to promote this process

Answer

Angiogenesis forms new capillaries to supply oxygen and nutrients to healing tissue; photobiomodulation upregulates VEGF (vascular endothelial growth factor) to enhance this process.

Question 5

Which type of chronic wound is most commonly treated with laser therapy in US clinical practice?

Accepted Answer

Diabetic foot ulcers, pressure injuries, and venous stasis ulcers

Answer

Diabetic foot ulcers, pressure injuries, and venous stasis ulcers are the most common chronic wounds treated with laser therapy due to their impaired healing mechanisms.

(CLT) Certified Laser Therapist Practice Test

(CLT) Certified Laser Therapist Practice Test

CLT CLT Wound Healing & Tissue Repair 1