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quiz General Medicine · 5 questions

Transcutaneous Electrical Nerve Stimulation (TENS)

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1

A patient with chronic low back pain reports minimal relief after 20 minutes of conventional TENS. Which next modality is most appropriate according to standard treatment sequencing?

2

Which peripheral nerve fiber type is primarily targeted by a short‑high‑frequency TENS protocol (200 µs, 60‑120 Hz) to achieve rapid analgesia?

3

During TENS application, a clinician observes that the patient experiences a mild tingling sensation without any visible muscle twitch. Which combination of pulse width and frequency most likely produced this effect?

4

A researcher compares two TENS protocols: one that activates the gate‑control mechanism and another that primarily engages the endogenous opioid system. Which statement correctly distinguishes their onset and duration of analgesia?

5

When placing electrodes for TENS on a patient with localized trigger points, which placement strategy yields the greatest analgesic effect according to the text?

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