NPTE-PT Equipment and Therapeutic Modalities 3

Question 1

A physical therapist is using neuromuscular electrical stimulation (NMES) to facilitate quadriceps re-education after ACL reconstruction. Which parameter is MOST important for minimizing patient discomfort while achieving muscle contraction?

Accepted Answer

High pulse duration (300–500 µs) with low frequency

Answer

Longer pulse durations effectively recruit motor neurons at lower amplitudes, improving comfort while achieving the desired contraction.

Question 2

Which assistive device requires the GREATEST amount of upper extremity strength and coordination to use safely?

Accepted Answer

Axillary crutches

Answer

Axillary crutches require significant upper extremity strength, trunk stability, and coordination for safe swing-through gait patterns.

Question 3

A patient with a spinal cord injury at T6 is being fitted for a wheelchair. Which feature is MOST critical to prevent autonomic dysreflexia?

Accepted Answer

Solid seat insert for pressure distribution

Answer

Proper pressure distribution with a solid seat insert prevents pressure injuries, which are a common trigger for autonomic dysreflexia in high thoracic SCI.

Question 4

When is whirlpool hydrotherapy MOST appropriate?

Accepted Answer

Management of wounds with necrotic tissue requiring debridement

Answer

Whirlpool's agitation aids mechanical debridement of necrotic tissue, making it appropriate for wounds requiring wound bed preparation.

Question 5

A therapist applies pulsed ultrasound (20% duty cycle) to a subacute injury. What is the PRIMARY physiological effect intended?

Accepted Answer

Mechanical (non-thermal) effects to promote tissue healing

Answer

Low duty cycle pulsed ultrasound minimizes heat accumulation and produces non-thermal mechanical effects like acoustic streaming that promote healing.

NPTE-PT Test Practice Test

NPTE-PT Test Practice Test

NPTE-PT Equipment and Therapeutic Modalities 3