What condition characterizes acute non-neurogenic detrusor atony?

Acute non-neurogenic detrusor atony is characterized by the inability of the detrusor muscle to contract properly, which can occur in the presence of various obstructions that prevent normal bladder emptying. The correct choice, which refers to obstruction due to feline idiopathic cystitis, highlights a common situation in cats where inflammation causes the bladder walls to thicken and increases the risk of blockages. This condition leads to a reduced ability of the detrusor muscle to contract effectively, resulting in atony.

The obstructive nature of feline idiopathic cystitis is significant because it can trigger a reactive process in the bladder, causing a failure of normal detrusor muscle function. Without the bladder being able to empty completely, it can lead to increased pressure and an atonic state.

Other options do not directly relate to acute non-neurogenic detrusor atony in a way that reflects a mechanical obstruction or significant bladder wall changes associated with detrusor muscle dysfunction as seen in this condition. Understanding these concepts helps clarify why obstruction due to feline idiopathic cystitis is a critical concern when diagnosing and managing urinary dysfunction in affected patients.