What is the first essential action in the emergency management of feline urethral obstruction?

• A. Start antibiotics
• B. Administer diuretics
• C. Analgesia and IV fluids only
• D. Immediate catheterization to relieve obstruction

Answer: (D)

The first essential action is to relieve the blockage by catheterizing to restore urine flow. When a male cat has a urethral obstruction, the immediate danger is not dehydration or infection but the inability to empty the bladder, which can rapidly lead to severe pain, bladder rupture, and dangerous electrolyte disturbances like hyperkalemia that can cause life-threatening heart rhythm problems. Relieving the obstruction stops ongoing urine buildup and begins restoring normal physiology. Analgesia and IV fluids are important for stabilization and comfort, but they don’t remove the blockage. Antibiotics, and diuretics, don’t address the root problem and can be inappropriate as initial steps. Once the obstruction is relieved, supportive care continues with fluids, electrolyte monitoring, and surveillance for post-obstructive issues.