Patient CareQuestion 17 of 100

Which instruction is correct when teaching a female patient to collect a clean-catch midstream urine specimen?

a.Collect the very first portion of the urine stream to catch the most bacteria
b.Cleanse the labia from front to back, begin voiding into the toilet, then collect the middle portion in the sterile cup
c.Collect the specimen in any clean container from home and refrigerate it for two days
d.Touch the inside of the cup to guide the stream accurately

Explanation

A clean-catch specimen requires cleansing from front to back, discarding the first portion of urine that flushes the distal urethra, and catching the midstream portion in a sterile container. The first portion contains the most surface contaminants, which is the opposite of what a culture needs. Touching the inside of the cup contaminates it, and a nonsterile home container invalidates the specimen.

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