NPTE-PT Therapeutic Modalities Application 2

Question 1

A patient with chronic plantar fasciitis is treated with low-level laser therapy (LLLT). Which mechanism best explains its therapeutic effect?

Accepted Answer

Photobiomodulation promoting cellular ATP production

Answer

LLLT works through photobiomodulation, stimulating mitochondrial activity and increasing ATP production to promote healing.

Question 2

When applying phonophoresis with hydrocortisone to a patient's lateral epicondyle, which ultrasound parameter best facilitates transdermal drug delivery?

Accepted Answer

1 MHz continuous mode at 1.0 W/cm²

Answer

1 MHz continuous ultrasound penetrates deeper and the continuous mode maximizes acoustic streaming to enhance drug penetration into deeper tissue.

Question 3

A PT is using interferential current (IFC) for pain modulation in a post-operative knee patient. The beat frequency most effective for endorphin release is:

Accepted Answer

1–10 Hz

Answer

Low beat frequencies of 1–10 Hz stimulate endogenous opioid (endorphin) release for longer-lasting pain relief.

Question 4

Which condition is an absolute contraindication for applying thermotherapy (moist heat pack) locally?

Accepted Answer

Peripheral vascular disease with impaired circulation

Answer

Peripheral vascular disease impairs heat dissipation, creating a risk of thermal burns and tissue damage with local heat application.

Question 5

A PT applies cryotherapy immediately after acute ankle inversion sprain. Which physiological effect is the PRIMARY goal in this phase?

Accepted Answer

Reducing secondary hypoxic injury by decreasing tissue metabolism

Answer

Cryotherapy reduces local tissue metabolism, limiting secondary hypoxic injury in cells surrounding the primary trauma zone.

NPTE-PT Test Practice Test

NPTE-PT Test Practice Test

NPTE-PT Therapeutic Modalities Application 2