A1-year-old postoperative client has been experiencing repeated vomiting. what antiemetic drug has a black box warning against use in a client of this age?

The antiemtic drug that has a black box warning against the use of a client in this age is the promethazine. This drug is contradicted in children that are in the ages of two years old and below because of certain risk that it is associated with children when taken.

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it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.