Answer:
4. Ask the child to stick the thumb in the mouth, close the mouth around it, and then blow on the thumb as if it were a trumpet.
Explanation:SVT(SUPRAVENTRICULAR TACHYCARDIA) is a heart disease in children , known to have a prevalence of one in every 2500 children, caused by a problem in with the heart beat as a result of the CARDIAC CONDUCTION SYSTEM. It is actually described as not a life threatening disease,but can be life threatening if the episodes are frequent, because it will weaken the CARDIAC VALVES and make them week to withstand the pumping of blood.