ATC Therapeutic Modalities 3

Question 1

The Arndt-Schultz Law as applied to therapeutic modalities states that:

Accepted Answer

Weak stimuli excite, moderate stimuli enhance, and strong stimuli suppress physiological activity

Answer

More intense stimuli always produce greater physiological responses

Answer

Depth of penetration is inversely proportional to frequency

Answer

Heat energy is directly proportional to the electrical resistance of tissue

Question 2

The cryostretch technique uses which sequence of therapeutic applications?

Accepted Answer

Ice application until numbness, then stretching, then rewarming

Answer

Heat application, then stretching, then ice

Answer

Electrical stimulation, then cold, then stretching

Answer

Stretching, then hot pack, then ice

Question 3

Which ultrasound parameter is MOST critical to control when treating tissue adjacent to a metal implant?

Accepted Answer

Spatial average intensity (keep lower)

Answer

Treatment frequency (MHz)

Answer

Duration of treatment session

Answer

Size of the treatment area

Question 4

Low-level laser therapy (LLLT) exerts its therapeutic effects primarily through which mechanism?

Accepted Answer

Photobiomodulation of cellular metabolic processes

Answer

Thermal heating of superficial tissues

Answer

Mechanical vibration of tissue molecules

Answer

Electrical stimulation of muscle fiber membrane

Question 5

In fluidotherapy, heat is transferred to the body part through which mechanism?

Accepted Answer

Convection

Answer

Conduction only

Answer

Radiation

Answer

Evaporation

Question 6

Russian current stimulation (2,500 Hz burst at 50 bursts/second) is MOST effective for which therapeutic goal?

Accepted Answer

Muscle re-education and strengthening

Answer

Pain management through gate control

Answer

Wound healing acceleration

Answer

Reducing edema via lymphatic pump effect

Question 7

Paraffin bath therapy is MOST appropriately indicated for which condition?

Accepted Answer

Chronic arthritic conditions of the hands or feet

Answer

Acute ankle sprain with significant edema

Answer

Open wounds requiring debridement

Answer

Immediate post-operative swelling