Which machine alarm does not stop the blood pump?

The machine alarm that does not stop the blood pump is related to conductivity. Conductivity alarms are typically designed to alert the operator to issues within the dialysis process that may affect the quality of the treatment, such as problems with the dialysate solution, but they do not immediately halt the blood pump.

This type of alarm may indicate that the conductivity of the dialysate is outside of the normal range, which could require adjustment or replacement of the dialysate solution, but it allows for continued blood flow. This is critical because stopping the blood pump could jeopardize the patient’s access to dialysis and potentially lead to complications.

In contrast, pressure alarms are activated when there is a blockage or significant change in blood flow, which necessitates stopping the blood pump to protect the patient and the dialysis machine. Fluid alarms may indicate issues with fluid balance or delivery, and temperature alarms are triggered to prevent problems associated with incorrect temperature in the dialysis process. Both of these alarms also typically require stopping the blood pump to ensure patient safety. Thus, the conductivity alarm's function is primarily for monitoring and does not result in an immediate cessation of blood flow.