In use, a test sample of blood is contacted with the matrix of said test device and {HEAD ~ the light reflectance therefrom} is measured as {TAIL ~ an indication} of the quantitative amount of hemoglobin present in said sample 
is measured as
In use , a test sample of blood is contacted with the matrix of said test device and { HEAD ~ the light reflectance therefrom } is measured as { TAIL ~ an indication } of the quantitative amount of hemoglobin present in said sample
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH