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What is the ratio of the sampling time to wash time?(a) 1:2(b) 3:1(c) 2:1(d) 1:3I had been asked this question during an interview for a job.My doubt is from Skin Reflectance Oximeters topic in chapter Oximeters of Biomedical Instrumentation |
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Answer» RIGHT choice is (c) 2:1 Easiest explanation: Between each sampling, the crook ENTERS a receptacle of WATER or other suitable wash fluid, to REDUCE cross-contamination of one sample with another. The ratio of sampling time to wash time is NORMALLY 2:1. |
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