New bladder scanner medline model biocon750 kept showing zero ml, but we kept trying and at one point the rn got a scan saying >999ml.Two rns kept trying to scan and all subsequent (approximately 10 tries from various angles) readings were 0ml.We attempted to find the old (preferred) bladder scanner but could not.Rns analyzed symptoms and prior ct showing bladder distention and got an order to straight cath from hospitalist.After four failed attempts the 5th catheter placement was successful with >2l urine output in the first 30 minutes.Either the new bladder scanner is not good or rn training is inadequate to operate.
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