Which of the Following Best Describes the Evidence Regarding Concurrent

question 8

Multiple Choice

Which of the following best describes the evidence regarding concurrent use of caffeine and TENS for pain modulation?

• A) Caffeine consumption may decrease the effectiveness of TENS.
• B) Caffeine consumption increases the analgesic effect of TENS.
• C) Concurrent use of caffeine and TENS may result in analgesic tolerance.
• D) Caffeine acts as a competitive agonist on the opioid receptors, thereby increasing the analgesic effect of TENS.