Final answer:
Without specific information about the establishment's beverage recipes, it is not possible to provide an accurate answer to the number of pumps used in a Medium Iced 151 NRG.
Step-by-step explanation:
This question seems to reference a specific coffee shop or beverage service protocol, particularly how many pumps of flavor or additive are used in a Medium Iced 151 NRG.
However, without specific knowledge about the policies or recipes of the establishment in question, it is not possible to provide the exact number of pumps.
Typically, the number of pumps in a beverage would depend on the shop's standard recipes or potentially customized customer preference if ascertained from the establishment directly.
Therefore, I encourage you to check the official resources or ask the staff at the location you are referencing for the most accurate answer.