Which statement describes cystocentesis?

Which statement describes cystocentesis?

• A. It involves inserting a needle into the bladder to collect urine.
• B. It is used to collect urine by free catching.
• C. It is the most non-invasive method for urine collection.
• D. It collects urine from the kidney bypassing bladder.

Answer: (A)

Cystocentesis is a technique to obtain a urine sample by inserting a sterile needle directly into the bladder through the abdominal wall, using aseptic technique. This method yields a sample that is minimally contaminated by urethral or genital tract bacteria, which is especially important when you need an accurate culture and sensitivity result. It’s typically performed with the patient sedated or restrained in a calm position, with the bladder sufficiently distended, and the needle directed carefully into the bladder lumen to aspirate urine into a syringe. The resulting sample is ideal for urinalysis and culture because it comes from the bladder itself, not from the lower urinary tract where contamination is more likely. In contrast, urine collected by free catch is non-invasive but carries higher contamination risk, and sampling from the kidney bypassing the bladder describes a nephrostomy-type approach, not cystocentesis.

Cystocentesis is a technique to obtain a urine sample by inserting a sterile needle directly into the bladder through the abdominal wall, using aseptic technique. This method yields a sample that is minimally contaminated by urethral or genital tract bacteria, which is especially important when you need an accurate culture and sensitivity result. It’s typically performed with the patient sedated or restrained in a calm position, with the bladder sufficiently distended, and the needle directed carefully into the bladder lumen to aspirate urine into a syringe. The resulting sample is ideal for urinalysis and culture because it comes from the bladder itself, not from the lower urinary tract where contamination is more likely. In contrast, urine collected by free catch is non-invasive but carries higher contamination risk, and sampling from the kidney bypassing the bladder describes a nephrostomy-type approach, not cystocentesis.