Final answer:
Midstream clean-catch urine specimens require all of the above: a clean container, proper genital cleaning, and collection of the midstream urine, contributing to the accuracy of urinalysis and diagnosis of urinary tract infections.
Step-by-step explanation:
Midstream clean-catch urine specimens require proper cleaning of the genital area, collecting the middle portion of the urine stream, and using a clean container. There should be no blood found in the urine, except in cases of menstrual contamination, which is not considered abnormal. To minimize contamination with normal microbiota of the genital areas, it is crucial to collect a clean catch. The process involves first washing the genital area, then starting to urinate and stopping, and finally resuming the urination to collect the midstream urine in the container. This procedure helps in the accurate diagnosis of urinary tract infections and is important for reliable urinalysis results.