Unit 2: Week 3

Question 1

Major types of pain

Answer 1

Acute, Chronic, Referred

Question 2

TENS

Answer 2

transcutaneous electrical nerve stimulation

Question 3

Acute Pain

Answer 3

• from injury or disease
• typically lasts <3 months

Question 4

Chronic Pain

Answer 4

• begins as acute but lasts longer than 3 months
• not a symptom, its considered a DISEASE
• needs multimodal approach

Question 5

Referred Pain

Answer 5

• response related to how nociceptiors converge at spinal nerve root

Question 6

A delta small myelinated (peripheral nerve pathway)

Answer 6

respond to mechanical and thermal stimuli
- sharp, stabbing, prickling
- short lasting !!

Question 7

C fibers small unmyelinated (peripheral nerve pathway)

Answer 7

respond to broad range of stimuli (polymodal)
- dull, aching, burning
- longer lasting !!!

Question 8

Gate Control Theory

Answer 8

• selective stimulation of larger diameter A beta sensory nerve fibers BLOCKS NOXIOUS AFFERENT INPUT from smaller diameter unmyelinated nociceptinve C fibers and small myelinated A fibers

Question 9

Main Mechanism of Action for TENS

Answer 9

• activation of peripheral opioid receptors
• Activation of central opioid receptors

Question 10

IFC CURRENTS… beat freq…

Question 11

Sweep Frequency

Answer 11

to allow low and high freq stimulation within same treatment

Question 12

Swing Freq:

Answer 12

can set beat freq to just go min to max OR move continuously though range of min to max

Question 13

Vector Scan

Answer 13

• amp modulaation of input currents
• increases area of interference pattern
  -provides simulation to larger tx area