(b)(4).An alarm indicative of a potential malfunction of the disposable cassette was reported.The device was not returned and the lot number is unknown; therefore, a device analysis could not be completed.However, a kinked patient line leading to an incompletely primed line is a known cause of this alarm.It was also reported that the patient had connected to an improperly primed patient line.Use errors and proper user instructions are addressed in ¿the homechoice and homechoice pro systems patient at-home guide¿, which is shipped with every homechoice device.The guide provides step-by-step instructions for properly priming the disposable set.It warns the user not to connect to the patient line unless the fluid level is at or near the connector at the end of the disposable set patient line.A review of the label for the product family will be conducted.Should additional relevant information become available, a supplemental report will be submitted.
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