- What is the normal difference in current intensity between the two sides?
π . < 2 mA
π . < 4 mA
π . < 6 mA
π . < 8 mA - Beyond the conduction block in case of neurapraxia what should be the difference of current between two sides?
π . < 2 mA
π . < 4 mA
π . < 6 mA
π . < 8 mA - In unilateral nerve injury, when the required current intensity for stimulation is 10 β 20 times of opposite side normal muscle then what might be the condition?
π . Neurapraxia
π . Axonotemesis of few nerve fibers
π . Axonotomesis of all most all nerve fibers
π . Neurotemesis - What might be the strength of current required to stimulate a muscle with pulse of 10ms duration
π . Same as required for 30 ms pulse
π . Same as required for 1 ms pulse
π . Twice as 30 m sec pulse
π . Half of 1 ms pulse - The rheobase is
π . Unchanged in a denervated muscle
π . Increases in a denervated muscle
π . Decreases in a denervated muscle
π . First increase then decrease - Which are among the following is correct for SD curve plotting
π . Constant current machine more comfortable
π . Constant voltage machine is more comfortable
π . Constant current comfortable & less accurate
π . Constant voltage comfortable and less accurate - SD curve can
π . Distinguish between innervation & denervation
π . Distinguish between innervated and denervated but can not quantify the state of innervation
π . Distinguish innervated and denervated and quantify the state of innervation
π . None - Chronaxie for denervated muscle is
π . < 1 ms π . < 10 ms π . > 10 ms
π . > 1 ms - Rheobase is
π . Maximum tolerable current for a nerve impulse at long duration
π . Minimum current for a nerve impulse at short duration
π . Minimum current for a nerve impulse at long duration
π . None of the above - Utilization time is
π . Same as chronaxie
π . Pulse duration at rheobase current
π . Shortest duration of pulse at rheobase current
π . Longest duration of pulse at rheobase current
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