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Why does a refrigerated urine sample must be returned to room temperature before chemical testing by reagent strips?SPECIMEN COLLECTION AND PREPARATION
voiding, refrigerate the specimen immediately and let it return to room temperature before testing. temperature may result in microbial proliferation with resultant changes in pH. A shift to alkaline pH may cause false positive results with the protein test area.
How long can a urine specimen remain at room temperature before it must be refrigerated quizlet?For the most accurate results, urine specimens should be kept refrigerated and processed within 2 hours of collection. Hematuria is the presence of intact red blood cells (RBCs) in urine.
When performing a reagent strip test for protein false positive results may be obtained in the presence of?(2) Protein: False positive results may be obtained with highly buffered or alkaline urines. Contamination of the urine specimen with quaternary ammonium compounds (from some antiseptics and detergents) or with cleansers containing chlorhexidine may also produce false positive results.
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At what temperature should the urine be prior to testing with the reagent strip method quizlet?
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