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Hemoglobin Scale Booklet

This portable booklet allowed for the quick determination of a patient’s hemoglobin levels. The colour of a drop of the patient’s blood on blotting paper was simply compared to the colours on the scale, which correspond to different concentrations of hemoglobin.

This diagnostic tool would have been used to diagnose conditions such as anemia.

(Early 20th Century)

Source: Medical Alumni Association Collection