CLT CLT Wound Healing & Tissue Repair 2

Question 1

The remodeling (maturation) phase of wound healing can last up to:

Accepted Answer

2 years

Answer

The remodeling phase involves collagen cross-linking and scar maturation and can continue for up to 2 years following initial wound closure.

Question 2

How does low-level laser therapy (LLLT) affect fibroblast activity in wound healing?

Accepted Answer

LLLT stimulates fibroblast proliferation and collagen synthesis, accelerating tissue repair

Answer

Low-level laser therapy stimulates fibroblast proliferation and increases collagen synthesis through photobiomodulation, directly accelerating the tissue repair process.

Question 3

Which wavelength range is considered most effective for promoting wound healing in deep tissue using laser therapy?

Accepted Answer

630–1000 nm (red to near-infrared range)

Answer

The 630–1000 nm therapeutic window (red to near-infrared) penetrates tissue optimally and interacts with cytochrome c oxidase to stimulate cellular energy production and wound healing.

Question 4

What is wound contraction and which cell type drives this process?

Accepted Answer

It is the pulling together of wound edges, driven by myofibroblasts

Answer

Wound contraction is the mechanical drawing together of wound margins, primarily driven by myofibroblasts—differentiated fibroblasts with smooth-muscle-like contractile properties.

Question 5

A wound with slough and necrotic tissue is considered to be in which wound healing state?

Accepted Answer

A stalled or chronic wound requiring debridement before laser therapy can be maximally effective

Answer

Slough and necrotic tissue indicate a stalled wound; debridement is typically required to remove non-viable tissue before laser therapy can optimally stimulate healing.

(CLT) Certified Laser Therapist Practice Test

(CLT) Certified Laser Therapist Practice Test

CLT CLT Wound Healing & Tissue Repair 2