- A dictionary of medical eponyms

Ehrlich's finger test

Related people

In vivo test for demonstrating a haemolysis caused by biphasic cold haemolysins (Donath-Landsteiner antibodies). The patient's venously clogged finger is first held in ice water for 10 minutes and then in water with a temperature of 40° C. In positive cases there is a haemolysis in the serum from the capillary blood which is taken from the tip of the finger. An erythrocyt phagocytosis is often demonstrable in the blood smear.


  • P. Ehrlich:
    Über paroxysmale Hämoglobinurie.
    Deutsche medicinische Wochenschrift, Berlin, 1881, 7: 224-235.

What is an eponym?

An eponym is a word derived from the name of a person, whether real or fictional. A medical eponym is thus any word related to medicine, whose name is derived from a person.

What is Whonamedit?

Whonamedit.com is a biographical dictionary of medical eponyms. It is our ambition to present a complete survey of all medical phenomena named for a person, with a biography of that person.


Whonamedit? does not give medical advice.
This survey of medical eponyms and the persons behind them is meant as a general interest site only. No information found here must under any circumstances be used for medical purposes, diagnostically, therapeutically or otherwise. If you, or anybody close to you, is affected, or believe to be affected, by any condition mentioned here: see a doctor.