The polysomnograph has a leakage current of 200 μA. What should the technician do about this?

In this scenario, acknowledging the potential safety risks associated with equipment leakage current is paramount. A leakage current of 200 μA may exceed acceptable safety standards for medical devices, particularly those used in a sleep study setting where patient safety is the highest priority.

When a piece of equipment shows a leakage current that is considered too high, the appropriate course of action is to refrain from using that equipment until it is inspected and necessary adjustments are made to reduce the leakage to safe levels. This prevents any risk of electric shock or other hazardous outcomes that could compromise patient safety.

The other options suggest either using potentially unsafe practices, continuing to use the equipment despite the noted risk, or implementing additional grounding measures, which do not fully address the issue of elevated leakage current. The primary concern here is that the equipment should not be used without assurance of safety. Therefore, taking the step to not use the equipment until the issue is rectified is the correct safety protocol.