Adenosine

Question 1

M

Answer 1

Agonist of adenosine receptors
Activates G-protein coupled receptors-less freq of spontaneous depolarisations,increased resistance to depolarisation
Slows down HR and conduction so increased AVN refractoriness-breaks re-entry circuit-cardioversion
can help diagnose atrial pathology

Question 2

I

Answer 2

First line diagnostic and therapeutic agent in SVT

Question 3

C

Answer 3

hypotension, coronary ischaemia, HF,asthma/COPD, heart transplant, CCB, caffeine, theophylline

Question 4

A

Answer 4

bradycardia and asystole, sinking feeling, impending doom, SOB,