TENS

What is the primary purpose of TENS therapy?

• a. To increase blood pressure

• b. To relieve pain and promote muscle relaxation

• c. To diagnose neurological conditions

• d. To measure heart rate variability

Which type of current is typically used in TENS therapy?

• a. Direct current only

• b. Alternating high-frequency current

• c. Continuous low-voltage current

• d. Pulsed electrical current with adjustable parameters

What is the mechanism of action for TENS in pain relief?

• a. Direct muscle stimulation only

• b. Release of endorphins and gate control theory of pain

• c. Increased inflammation response

• d. Decreased blood circulation

Which of the following is a contraindication for TENS therapy?

• a. Chronic back pain

• b. Placement over cardiac pacemakers

• c. Arthritis pain

• d. Post-surgical pain

What is the typical frequency range used in conventional TENS?

• a. 1-5 Hz

• b. 10-50 Hz

• c. 80-120 Hz

• d. 200-500 Hz

During TENS application, what sensation should patients typically experience?

• a. Sharp, painful sensations

• b. Burning sensations

• c. Comfortable tingling or buzzing

• d. Complete numbness

What is the recommended duration for a standard TENS treatment session?

• a. 5-10 minutes

• b. 20-30 minutes

• c. 1-2 hours

• d. 4-6 hours

Which electrode placement pattern is most effective for TENS therapy?

• a. Random placement

• b. Over the site of pain or along nerve pathways

• c. Only on joints

• d. As far from the pain as possible

What safety precaution should be taken when using TENS?

• a. Always use maximum intensity

• b. Apply electrodes to broken skin

• c. Use while operating machinery

• d. Remove electrodes before turning off the device

How should TENS electrodes be maintained?

• a. Reuse indefinitely

• b. Replace when adhesion decreases or after recommended uses

• c. Clean with alcohol daily

• d. Share between multiple patients