A 10-year-old girl presented with a sore throat and fever. A physician diagnosed her with pharyngitis caused by group A-β-hemolytic streptococcus. She was given an IM injection of penicillin. Approximately 5 minutes later, she was found to be in respiratory distress and audibly wheezing. Her skin was mottled and cool, she was tachycardic with a fallen blood pressure of 70/20 mmHg.
The physician immediately diagnosed her as having an anaphylactic reaction to the penicillin and gave a subcutaneous injection of epinephrine. Based on this clinical presentation, answer the following questions : What effect will epinephrine have on this patient’s vascular system? Which adrenoceptor primarily mediates the vascular response? *This case is from Docplexus Editorial Team for educative purpose only Source: Medicalgeek
