1.

The percentage of functional haemoglobin combined with oxygen is expressed as ______(a) (concentration of oxyhaemoglobin/{concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin})*100(b) (concentration of deoxyhaemoglobin/{concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin})*100(c) ({concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin}/concentration of deoxyhaemoglobin)*100(d) ({concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin}/concentration of oxyhaemoglobin)*100This question was posed to me in a national level competition.The question is from Digital Stethoscope in section Biomedical Recorders of Biomedical Instrumentation

Answer»

The CORRECT option is (a) (concentration of OXYHAEMOGLOBIN/{concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin})*100

For explanation: The instrument is designed to MEASURE the PERCENTAGE of functional hemoglobin COMBINED with oxygen. This can be expressed as:

where CO is the concentration of oxyhemoglobin and CR is the concentration of deoxyhemoglobin.



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