A follow-up report will be submitted upon completion of the investigation.During follow-up it was reported that given the patient's medical history, was being treated by multiple departments, respiratory, cardiology and rheumatology.The patient did not stay in the icu or the hcu, but in the department of pulmonary and respiratory medicine.Initially the patient's status was a do not resuscitate (dnr).Initially, the patient was managed on intermittent 2l of oxygen via cannula.On (b)(6) 2018, the patient was placed on nppv (non-invasive positive pressure ventilation).On this same day, the nurse confirmed that the "patient disconnect" alarm did not function when the patient removed the mask.The nurse consulted with the ce about the "'patient disconnect" alarm that did not sound and also to deal with the "low minute ventilation" alarm at additional setting of 3.5l.On (b)(6), the patient's spo2 did not raise when treated with nppv, therefore the fio2 was lowered as treatment.The patient's condition worsened and resulted cardiac arrest.The patient's resuscitation took a long time and hypoxic encephalopathy and some other issues developed and the patient passed away.The patient was monitored by the patient monitors and the clinicians did not rely on the ventilator alarms.Cardiopulmonary resuscitation was not performed, only the ventilator was used.The ce at the hospital reported that the patient's death was due to disease progression and there was no causal relationship between the ventilator and the patient's death.Further information has been requested including makes and models of accessories used.The use of unapproved accessories can change the functioning of the ventilator, including alarms.
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