# Local anesthetic with adrenaline if injected intravenously, what will be the result? ( AIIMS 2014, AIPG 2013)

# Local anesthetic with adrenaline if injected intravenously, what will be the result? ( AIIMS 2014, AIPG 2013)
A. Hypertension with Tachycardia
B. Hypotension with Tachycardia
C. Hypotension with Bradycardia
D. Hypertension with Bradycardia

The correct Answer is: A. Hypertension with Tachycardia.


 # In a hypertensive patient on B-blockers, an injection of Local anesthesia + Adrenaline will cause:
A. Hypertension and Tachycardia
B. Hypertension and Bradycardia
C. Hypotension and Tachycardia
D. Hypotension and Bradycardia

The correct answer is B. Hypertension and Bradycardia.




  • There are two separate drug interaction considerations with local anesthetics, the anesthetic itself and the vasoconstrictor.
  • Hypertensive events have been documented in patients taking B blockers, Furazolidone, Tricyclic antidepressants, methyl dopa, and the antihypertensive drugs guanethidine and Rauwolfia alkaloids.
  • Beta blocker interactions are potentially the most serious ones and cause hypertension and bradycardia. 


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