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

Proliferative phase

Answer

Remodeling phase

Answer

Inflammatory phase

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

By suppressing all immune cell activity

Answer

By cauterizing the wound edges

Answer

By increasing scar tissue formation

Question 3

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

Accepted Answer

Fibroblasts

Answer

Macrophages

Answer

Neutrophils

Answer

Platelets

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 destroys old vessels; laser prevents it

Answer

Angiogenesis is irrelevant to wound healing

Answer

Angiogenesis only occurs in bone healing

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

Paper cuts

Answer

Surgical incisions less than 24 hours old

Answer

Burn wounds requiring skin grafts

Question 6

What is 'granulation tissue' and why is its formation a positive sign during laser-assisted wound healing?

Accepted Answer

It is new vascular connective tissue filling the wound bed, indicating active proliferative healing

Answer

Granulation tissue is scar tissue indicating healing failure

Answer

It is a bacterial biofilm on the wound surface

Answer

Granulation tissue indicates infection