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

Thermal heating of deep tissue

Answer

Cavitation of plantar fascia fibers

Answer

Eddy current induction in superficial tissue

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

3 MHz continuous mode at 1.5 W/cm²

Answer

1 MHz pulsed 20% duty cycle at 0.5 W/cm²

Answer

3 MHz pulsed 50% duty cycle at 2.0 W/cm²

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

80–150 Hz

Answer

50–100 Hz

Answer

150–200 Hz

Question 4

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

Accepted Answer

Peripheral vascular disease with impaired circulation

Answer

Subacute muscle strain

Answer

Chronic low back pain

Answer

Delayed-onset muscle soreness

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

Increasing local metabolic rate

Answer

Promoting collagen synthesis

Answer

Increasing nerve conduction velocity

Question 6

During TENS application for pain relief using the conventional (high-rate) mode, which sensory response indicates correct electrode placement and intensity?

Accepted Answer

Comfortable tingling or paresthesia without muscle contraction

Answer

Visible muscle twitch with mild discomfort

Answer

Strong noxious sensation without muscle contraction

Answer

Mild burning sensation over the electrodes

Question 7

A therapist uses fluidotherapy on a patient's hand following Dupuytren's contracture release. Which unique benefit does fluidotherapy offer over paraffin bath?

Accepted Answer

Ability to perform active exercise during treatment

Answer

Lower treatment temperature range

Answer

Greater depth of thermal penetration

Answer

Shorter treatment duration required