Final answer:
The best choice for needle size and syringe size for a cystocentesis urine collection is a 20- or 22-gauge needle and a 10-mL syringe.
Step-by-step explanation:
The best choice for needle size and syringe size for a cystocentesis urine collection would be A) a 20- or 22-gauge needle and a 10-mL syringe. A larger needle like a 20- or 22-gauge is preferable for cystocentesis because it allows for faster collection of urine and reduces the chances of needle clogging. Additionally, a 10-mL syringe provides enough capacity to collect an adequate sample without the need for multiple syringe fills.