<prompt> Anaesthetic agent with vasoconstrictor is contraindicated in?Digital blockSpinal blockEpidural blockRegional anaesthesia  <response>: Ans. A Digital blockRef: Katzung 11the p446Vasoconstrictors are contraindicated if LAs are used for organs with end arteries tips of fingers, toes, nose, pinna and penis due to risk of ischemia and necrosis. 