| 释义 |
ˈpatch test Med.
[f. patch n.1 + test n.1]
A test for determining a patient's sensitivity to a substance, by applying to his skin a patch made of or containing it, and noting whether erythema is produced. Hence (with hyphen) as v. trans., to subject to such a test; also ˈpatch-testing vbl. n.
1933R. W. & R. M. B. MacKenna Dis. Skin (ed. 3) xv. 320 Recently the ‘patch’ or ‘contact eczema’ test has been much used to determine whether or not a patient is susceptible to an external irritant. 1956Brit. Med. Jrn. 21 Jan. 148/1 She was patch-tested to nylon stockings of three shades and gave positive reactions to all of them. 1963Lancet 5 Jan. 61/2 The patient was patch-tested with the sample that he had provided, and whereas the control patch remained unaffected, the test patch became reddened in three days, and redder and scaly in a week. 1963V. J. Fontana in F. Speer Allergic Child xv. 223 Patch testing is a helpful procedure in eliciting the specific cause in many types of contact dermatitis. 1967Oceanogr. & Marine Biol. V. 366 Patch testing with pieces of the polyzoon..have confirmed that the Alcyonidium is the causative agent. 1968A. Rook et al. Textbk. Dermatol. I. xiv. 301/1 The patch-test was first devised by Jadassolm 1896 and later brought into general use by Bloch. Ibid. 310/1 Any patch-test involves a risk of sensitization. |