Before prescribing metformin, the provider should:

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Before prescribing metformin, it is recommended to assess renal function by drawing a serum creatinine level. This is because metformin can cause lactic acidosis, which can be fatal if not detected early in patients with impaired renal function.

B and C are not necessary steps before prescribing metformin. Insulin is not the first-line treatment for type 2 diabetes and should only be considered if other medications are not effective. A thyroid preparation is not indicated solely for weight loss, and prescribing it without a proper indication can be harmful.

Before Prescribing Metformin, the Provider Should