What is the difference of measuring accuracy between microscopic counting and electronic counters?(a) + or – 20 %(b) + or – 17%(c) + or – 3%(d) + or – 23%This question was posed to me in semester exam.My question is from Intravascular Oximeters in chapter Oximeters of Biomedical Instrumentation

What is the difference of measuring accuracy between microscopic count

1.	What is the difference of measuring accuracy between microscopic counting and electronic counters?(a) + or – 20 %(b) + or – 17%(c) + or – 3%(d) + or – 23%This question was posed to me in semester exam.My question is from Intravascular Oximeters in chapter Oximeters of Biomedical Instrumentation
Answer» Correct answer is (b) + or – 17% To elaborate: Agoston and Zillich (1971) COMPARED the results of microscopic counting with those made by electronic COUNTERS. It may be observed that INSTEAD of the + 0r – 20% MEASURING accuracy in microscopic counting, the electronic counters can provide an accuracy of + or – 3%.

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