Reagent strips will deteriorate if the cap is kept open for a prolonged period.

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A urine specimen to be tested must be fresh,or adequately preserved,well mixed,not centrifuged,and at room temperature.The strip must be adequately moistened so that all test areas of the strip are brought into contact with the sample.Care must be taken not to leave the strip in contact with the sample too long,or chemicals will be leached out of the strip and be unavailable for the chemical reaction to occur.The strip is inserted into the specimen only briefly,for 1 second or less.Reagent strips must be kept in tightly capped containers.They will deteriorate rapidly when exposed to moisture,direct sunlight,heat,or volatile substances.Once the container is opened,use strips within 6 months.Chemstrip products are generally read at an end point or stable phase,allowing all results to be read at 1 minute,with results stable for 2 minutes.

Reagent Strips Will Deteriorate If the Cap Is Kept Open