This report is being filed at the request of the patient's wife who believes the placement of a bacterial/viral filter proximal to the ventilator's exhalation valve contributed to her husband's respiratory distress.The filters are placed to protect the exhalation valve from the viscosity of inhaled colistin and are in accordance with the drug manufacturer's recommendation.The patient's wife's beliefs were based on her observations of what she describes as more than one similar occurrence.The hospital's investigation attributed the patient's respiratory distress to a large amount of retained secretions that were removed during bronchoscopy, causing the patient to recover from his respiratory distress.The patient's wife believes that the filters became clogged with the colistin causing increased resistance; however the ventilator readings failed to substantiate this theory.
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