Question

Instruments based on the automatic optical technique take about _____ for completing the count blood cells.

(a) 30 sec

(b) 120 sec

(c) 60 sec

(d) 90 sec

The question was posed to me during a job interview.

I want to ask this question from Intravascular Oximeters in section Oximeters of Biomedical Instrumentation

Answer 1

The correct option is (a) 30 sec

The best I can explain: Instruments based on this automatic optical technique take about 30 s for completing the count. An accuracy of 2% is attainable. The instruments require about 1 ml of the blood sample.