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- | ====== Urine Samples ====== | ||
- | Urine for a [[http://en.wikipedia.org/wiki/Clinical_urine_tests|urinalysis]] can be collected at any time. A sufficient sample is required for accurate results. | ||
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- | ===== Morning Urine Samples ===== | ||
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- | In some cases, a first morning sample may be requested because it is more concentrated and more likely to detect abnormalities. | ||
- | Participants were instructed as follows: | ||
- | * empty your bladder before lying down to sleep | ||
- | * do not urinate during the night | ||
- | * collect the first urine from the first urination in the morning | ||
- | * keep the urine specimen cold. | ||
- | One to two ounces of urine were collected in a clean container and were brought by the participant to [[1A visit 2]]. |