Kahnn.

Brit.

/kɑːn/, U.S.

/kɑn/

Etymology: < the name of Reuben Leon Kahn (1887–1979), Lithuanian-born U.S. bacteriologist.

Medicine.

Used attributively and absol. to designate a diagnostic test for syphilis devised by Kahn in 1922, in which serum or spinal fluid that has been inactivated by heating is shaken with a suspension of antigen obtained from beef heart and the mixture examined for flocculation (usually after a period of incubation).

ΘΚΠ

the world > health and disease > healing > diagnosis or prognosis > tests > [adjective] > specific tests

drug testing1841

Head1893

Widal1896

tuberculin-tested1898

Schick1916

Kahn1922

T.T.1927

P–K1938

Papanicolaou1947

drugs testing1965

lymphocytotoxicity1965

patch-tested1990

1922 Jrnl. Amer. Med. Assoc. 9 Sept. 874/1 The clinical application of the Kahn precipitation test compares favorably in sensitiveness with the standard Wasserman reaction.

1922 Jrnl. Amer. Med. Assoc. 9 Sept. 873/1 In the serums examined from patients with late bone and joint involvement, the Kahn reaction again compares very favorably with the two Wasserman reactions.

1950 R. R. Willcox Text-bk. Venereal Dis. ix. 115 As a verification test the Kahn performed at different temperatures..has not proved entirely satisfactory.

1953 Med. Ann. LXXI. 7 Positive Wassermann and Kahn reactions may be given, for a time, by the serum of patients recovering from glandular fever.

1964 A. King & C. Nicol Venereal Dis. vii. 95 Of the many flocculation tests available, the Kahn test has been the most widely used, but in recent years the Price precipitation test (PPR) has increased in popularity in Great Britain.

This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2022).

单词	kahn
释义	Kahnn. Brit. /kɑːn/, U.S. /kɑn/ Etymology: < the name of Reuben Leon Kahn (1887–1979), Lithuanian-born U.S. bacteriologist. Medicine. Used attributively and absol. to designate a diagnostic test for syphilis devised by Kahn in 1922, in which serum or spinal fluid that has been inactivated by heating is shaken with a suspension of antigen obtained from beef heart and the mixture examined for flocculation (usually after a period of incubation). ΘΚΠ the world > health and disease > healing > diagnosis or prognosis > tests > [adjective] > specific tests drug testing1841 Head1893 Widal1896 tuberculin-tested1898 Schick1916 Kahn1922 T.T.1927 P–K1938 Papanicolaou1947 drugs testing1965 lymphocytotoxicity1965 patch-tested1990 1922 Jrnl. Amer. Med. Assoc. 9 Sept. 874/1 The clinical application of the Kahn precipitation test compares favorably in sensitiveness with the standard Wasserman reaction. 1922 Jrnl. Amer. Med. Assoc. 9 Sept. 873/1 In the serums examined from patients with late bone and joint involvement, the Kahn reaction again compares very favorably with the two Wasserman reactions. 1950 R. R. Willcox Text-bk. Venereal Dis. ix. 115 As a verification test the Kahn performed at different temperatures..has not proved entirely satisfactory. 1953 Med. Ann. LXXI. 7 Positive Wassermann and Kahn reactions may be given, for a time, by the serum of patients recovering from glandular fever. 1964 A. King & C. Nicol Venereal Dis. vii. 95 Of the many flocculation tests available, the Kahn test has been the most widely used, but in recent years the Price precipitation test (PPR) has increased in popularity in Great Britain. This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2022). < n.1922
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