1. OBJECTIVE Without reference, identify at least four out of six principles pertaining to general preventative maintenance and inspection procedures.

2.  Always make a note of the settings of the unit before performing any test to make sure that unit is returned to the user exactly the way it was prior to testing

3.  Integrity of the unit  Chassis – check to make sure the unit is not physically damaged  Power cord  Check for cuts or breaks in insulation  Check for exposed wires  Check for dry rot  Check the strain relief

4.  Electrodes/Leads  Check for cuts or breaks in insulation  Check for exposed wires  Check for gel or paste build-up

5.  Transducers – make sure there are no signs of damage  Caster and brakes  Make sure the casters are free moving  Make sure the brakes lock and unlock as designed

6.  Check any buttons, controls or knobs for damage and movement  Check any handles for damage or integrity  Check the hoses, tubes, fittings are connections for any sign of damage  Check the displays and indicators for damage  Check any doors or latches for proper operation

7.  Check any batteries or battery chargers for damage  If the unit is mounted, check the mount for strength and integrity  If the unit has a cart, check the integrity of the cart as well

8.  Loose items  Screws  Washers  Connections, fittings, hoses or tubes  Boards  Controls, indicators or knobs  Casters  Handles  Batteries

9.  Missing items  Accessories  Electrodes/leads  Screws  Power cords  Labeling  Hoses, tubes connections or fittings  Batteries or charging accessories