Which of the following is a recognized method for collecting urine samples from children?

The clean catch method is a recognized and commonly used technique for collecting urine samples from children. This method involves having the child urinate into a sterile container, which minimizes contamination from skin flora and other external sources. For younger children and infants, this may require waiting for them to void naturally before placing the container in the stream of urine. This approach helps ensure that the sample is representative of the urine produced by the kidneys.

This method is particularly important in clinical settings as it can provide accurate results for diagnosing various conditions, such as urinary tract infections or metabolic disorders. Using a clean catch technique reduces the risk of introducing bacteria or other substances that could affect the analysis of the urine sample, leading to more reliable results.

The other options do not represent effective or recognized methods for urine collection. For instance, using a syringe is not suitable for urine collection since it may not allow for a proper sample that minimizes contamination. Oral ingestion does not pertain to urine collection, as it involves providing fluid intake rather than collecting urine directly. Similarly, subcutaneous injection pertains to administering medications or vaccines and has no relevance to urine collection methods.