Concentration of adrenaline used with lidocaine is?: (A) 0.180555556, (B) 1.430555556, (C) 1:20000, (D) 1:200000
Answer is D. (334) 1 in 200000 REF: Miller 6th ed p. 589 USES AND DOSES OF ADRENALINE: USE DOSE Anaphylaxis SC or IM injection is 0.3-0.5 mg 1:1,000 Croup Racemic adrenaline is a 1:1 mixture of the dextrototary (d) and levorotatory (1) isomers of adrenaline Local anesthetics 1 in 200000