actions could be done by a cutting grass shock resulting from small electric currents that
machine that could cut a ground conductor and pass directly into the cardiac tissue disrupting
it is no more a ground conductor, instead a very the normal electric activity of the heart, leading
high resistor, must medical equipment have the to a ventricular fibrillation, the micro shock is
cover made of some insulated material that only associated with the ventricular fibrillation.
does not conduct the electric current, but there
In previous topics it was explained how some
are some parts of the equipment that is not materials
oppose
to
the
electric
current,
possible to be covered, e.g., the mobile X Ray fortunately for us the skin is a natural electric
machines have some parts as levers which are resistance which its value when it is dry changes
used to lock the arm, others to drive the tube, from some thousands ohms until one million
parts of the X Ray tube, etc., that remain ohms, this property of the dry skin is one of the
uncovered and are metal made, but if the two main factors that reduces the danger of
ground conductor has been cut still remains the ventricular fibrillation, but inside the human body
hazard of macro shock to occur, to avoid macro the resistance changes from 100 ohms to 500
shock we give some additional safety measures ohms, so if the electric current enter inside the
below:
body, tissues and organs would be exposed to
There must be a schedule for the ground big harms. It is important to follow the electrical
system to be serviced.
safety at home, offices, etc., but in hospitals due
During the medical equipment maintenance it to the medical procedures, frequently the skin is
is mandatory to verify that the equipment is well broken and there is no more high resistance to
ground, it is necessary to check carefully the oppose to the entrance of the electric current
electric frayed wires for to replace them for inside the human body, this is the reason why is
avoiding to be in contact with the chassis.
so important to follow the electrical safety rules
The water, soda, juice, etc., may conduct to inside the hospitals more than in any other
the electrical current, if some liquid reaches the places.
electric and electronic parts, it may be a path
between high potentials and the chassis, that´s How to avoid micro shock
why is not recommended to drink beverage
while working with medical equipment.
In intensive care units, or emergency and
accidental departments patients usually are
connected to more than one medical equipment,
Micro shock
Micro shock is produced for a small electric
even with catheters