express(мануальное опорожнение мочевого пузыря животного – кошки, собаки – напр., при повреждении спинного мозга.: "How to express a medium or large sized dog"
"A distended, painful bladder that cannot be expressed is the classic finding with urethral obstruction"CopperKettle)
free-catch urine(What is free catch urine?
Urine is voided voluntarily by pet in the usual way and a sample is collected into a sterile container as the pet urinates.vcahospitals.comvdengin)