Which statement about a sterile urine specimen is true?

Which statement about a sterile urine specimen is true?

• A. It is obtained only from urine in the collection bag.
• B. It can be collected by withdrawing urine from a bag without risk of contamination.
• C. Aids in determining the presence of a UTI and can be obtained by catheterization or from an indwelling catheter.
• D. It is never used to detect UTIs.

Answer: (C)

Obtaining a truly sterile urine sample is essential for accurate UTI diagnosis. Urine collected in a bag is contaminated with skin and environmental bacteria, so it cannot provide reliable culture results. A sterile specimen is achieved by catheterization or from an indwelling catheter, using aseptic technique, which prevents contamination and allows you to determine whether a urinary tract infection is present and identify the responsible organism and its antibiotic sensitivities. Samples from a collection bag are inappropriate for culture due to the high risk of misleading results, while sterile samples are specifically used to detect UTIs.

Obtaining a truly sterile urine sample is essential for accurate UTI diagnosis. Urine collected in a bag is contaminated with skin and environmental bacteria, so it cannot provide reliable culture results. A sterile specimen is achieved by catheterization or from an indwelling catheter, using aseptic technique, which prevents contamination and allows you to determine whether a urinary tract infection is present and identify the responsible organism and its antibiotic sensitivities. Samples from a collection bag are inappropriate for culture due to the high risk of misleading results, while sterile samples are specifically used to detect UTIs.