CLT Patient Selection & Contraindications 3

Question 1

A patient with active tuberculosis of the skin (lupus vulgaris) requests laser therapy. What is the correct clinical decision?

Accepted Answer

Laser therapy is contraindicated over active TB skin lesions

Answer

Active infectious skin conditions including cutaneous tuberculosis are a contraindication because laser energy may spread the infection or worsen tissue damage.

Question 2

Why is direct laser application over a malignant tumor considered an absolute contraindication?

Accepted Answer

Laser energy may stimulate cellular proliferation and promote tumor growth

Answer

Laser's biostimulatory effects on cellular metabolism raise concern that it may promote growth or metastasis of malignant cells.

Question 3

A patient with insulin-dependent diabetes wants laser therapy for a foot wound. What is the primary safety consideration?

Accepted Answer

Altered sensation and circulation increase risk of undetected tissue damage

Answer

Diabetic patients may have peripheral neuropathy and impaired circulation, reducing their ability to sense overheating and increasing the risk of burns.

Question 4

When treating a patient with hemophilia, what contraindication principle applies?

Accepted Answer

High-power laser settings may trigger uncontrolled bleeding due to vasodilation

Answer

High-power laser can cause vasodilation and increase local blood flow, which may trigger or worsen bleeding episodes in patients with clotting disorders.

Question 5

A patient is taking tetracycline for an infection. Why is this relevant to laser therapy?

Accepted Answer

Tetracycline is a photosensitizing antibiotic that increases adverse skin reactions

Answer

Tetracycline and other photosensitizing antibiotics increase skin sensitivity to light, raising the risk of burns, rashes, or other adverse effects during laser therapy.

(CLT) Certified Laser Therapist Practice Test

(CLT) Certified Laser Therapist Practice Test

CLT Patient Selection & Contraindications 3