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false-negative reaction

    0.01 sec.
false-negative reaction
n.
An erroneous or mistakenly negative response.


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They describe a man with HIV coinfection and clinical features of secondary syphilis who has a false-negative reaction to a qualitative serum RPR.
False-negative reaction with ascorbic acid The authors claim that ascorbic acid is an oxidizing agent and thereby causes a false-positive blood reaction on the dipstick.
[3] False-negative reactions for both blood and sugar are a major problem if there is ascorbic acid in the urine.
 
 
 
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