if an injection of atropine relieves bradycardia, the condition is due to action of the vagus; if it does not, the condition may be due to an affection of the heart itself.
Synonym(s): atropine test
atropine testA test devised by KK Dehio (1851–1927) once used in cardiology to differentiate between bradycardia due to vagal overstimulation (atropine evokes acceleration) and bradycardia of myocardial origin (which is unaffected by atropine).
Dehio,Karl K., Russian physician, 1851-1927.
Dehio test - a test to determine the cause of bradycardia. Synonym(s): atropine test