The therakos cellex photopheresis unit was giving false "air in line" error messages during the priming phase (pre-use) of treatment.After much troubleshooting, it was determined that rf interference from a t-mobile antenna was the source of rf that was creating the false error message to appear.This antenna is located across the street, approx.50 feet away from the patient room where treatment was to be done.It has yet to be determined if the problem is caused by an overly strong signal being sent out by the antenna or if the cellex unit is overly sensitive to inadvertent rf.Manufacturer response for photopheresis unit, cellex (per site reporter): the vendor brought out another cellex.It too was giving false "air in line" error messages.They were very helpful in troubleshooting the problem.(b)(6) called therakos to discuss this.
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