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What's the technical term for helping someone urinate with a urinal?
Literal
Urinal [with-で] urinate [nominalizer-の] [object-を] help-give [thing-こと] [object-を] technical-term [by-で] what [quotative-と] call [question-ますか]?
A healthcare/nursing vocabulary question. 尿瓶 (しびん) is a 'urinal,' 'bedpan for urinating' — medical equipment. おしっこする ('to pee') is the casual verbs for urinating. 手伝ってあげる ('help [someone] do X') combines ~てもらう's counterpart ~てあげる ('do X for someone') with 手伝う ('help'). So 尿瓶でおしっこするのを手伝ってあげる = 'to help someone urinate using a urinal' — a specific caregiving action. The question 専門用語でなんと言いますか? ('what do you call it in technical/specialist terms?') is a vocabulary inquiry, often from a trainee nurse or caregiver looking up formal terminology.