Quiz: Night Shift Work and Cancer

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1. Q1.How do health agencies classify night shift work?

   AA known human carcinogen (strongest evidence)BA probable (likely) human carcinogenCA possible human carcinogen (weaker evidence)DNot classifiable — evidence is inconclusive

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2. Q2.According to this article, how are people most often exposed to night shift work?

   AThere is no known way for people to be exposed to itBOnly by taking a prescription medicine for itCOnly through contact with the eyesDLong-term night or rotating shift work that disrupts the body clock

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3. Q3.Night shift work is most strongly linked to which cancer?

   AA possible link to breast cancerBbrain tumorsCchildhood leukemiaDmelanoma of the skin

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4. Q4.What does it mean that night shift work is classified as a carcinogen?

   AThat everyone exposed to it is certain to get cancerBThat it has been banned in every countryCThat it can cause cancer under some conditions — a hazard, not a measure of personal riskDThat there is no way to reduce exposure to it

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This quiz checks understanding of educational content only. It is not medical advice. Read: Night Shift Work and Cancer.