What standard preparation form of Astragalus membranaceus root is utilized in TCM?
Answer
Dried root
The standard method for utilizing the medicinal component of *Astragalus membranaceus* within the framework of Traditional Chinese Medicine involves processing the root into a specific preserved form. The preparation invariably dictates using the dried root. This dried form is the material typically incorporated into complex herbal formulas or decoctions designed to deliver the sustained tonic effects associated with strengthening Qi and supporting immune function over time, contrasting sharply with fresh preparations used for immediate topical action.

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