Edx quiz

What happened when decrease interelectrode distance from 4 cm to 2 cm

• Increase peak latency

• Decrease peak latency

• Increase amplitude

• Decreased onset latency

Answer explanation

Effects of cold temperature in electrodiagnostic study

• Increase latency

  Increase amplitude

• Decrease latency

  Decrease amplitude

• Increase latency

  Decrease amplitude

• Decrease latency

  Decrease amplitude

Answer explanation

What is the effect of decreasing low pass filter?

• Increased phase

• Same onset latency

• Increased peak latency

• Decreased amplitude

Answer explanation

Which one is correct about H-reflex?

• Is Not a true reflex

• Biphasic wave form

• Use submaximal stimulation intensity

• At supramaximal, H increase, M increase

Answer explanation

Which one is correct about F wave?

• Elicited by submaximal stimulation

• Latency and shape are constant with each stimulation

• Normal F/M amplitude vary from 20-50%

• Useful in detecting GBS

Answer explanation