Greta Hammarsten

Greta Hammarsten (née Norrbin) (March 22, 1896 – July 17, 1964) was a Swedish medical doctor and a pioneer of clinical chemistry in Scandinavia.

During this time, she also studied microchemical analysis at the University of Graz in 1924 and chemistry at the Carlsberg Laboratory in Copenhagen from 1927 to 1928 and from 1930 to 1931, where she worked for S. P. L. Sørensen and Kaj Linderstrøm-Lang.

Her doctoral thesis was titled Eine experimentelle Studie über Calciumoxalat als Steinbildner in den Harnwegen : speziell mit Rücksicht auf die Bedeutung des Magnesiums,[3] in which she examined the formation of kidney stones from calcium oxalate in the urinary tract, also known as renal lithiasis.

In 1947, Hammarsten published a voluminous guide to clinical chemistry analysis methods (Kliniska laborationsmetoder),[4] which became a standard reference for laboratories in the Nordic countries.

In 1957, an appendix titled "Laboratory Tests" was added to the guide, including chapters on anticoagulation therapy, fluid balance, cystinuria, and B12 analysis.