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This 1974 image, depicts a laboratory technician in the process of conducting a hemoglobin (Hb or Hgb) test, in this case, for a form of Hg known as fetal hemoglobin, in order to detect the presence of any abnormal Hb. Here, using her right hand, the technician was mouth pipetting a sample, while holding a stopwatch with her left. Today, mouth pipetting is no longer used, and a safer method, utilizing a mechanized pipetting device, is used instead.
High Resolution: Click here for hi-resolution image (18.34 MB)
Content Providers(s):CDC/ Dr. Robert M. Schmidt
Creation Date:1974
Photo Credit:
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.