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Hello, this is Dr. David. I am reviewing your question now and will be with you momentarily.
sounds like your father has a foley catheter in his penis into his bladder which is suppose to drain urine.
the catheter should be conntected to a urine collection bag.
the syringe through the blue valve inflates or deflates a balloon which helps keep the tip of the foley cathter in the bladder. you should not mess with this.
the foley catheter could be blocked or crusted up
you should have him see a nurse or doctor who can try to irrigate or flush the foley cathter.
if this doesn't work. they may need to change the foley cathter to a new one if it is old
let me know if you have questions.