Income reporting

So my self-employed husband sorta made 3x normal income in his first month operating his resale business in new venue. He had not been selling the three months prior. Any chance that Medicaid might use that against the sudden lump of income? We're in North Carolina if that makes any difference. What should I do about reporting this? Should we buy down the income through anything that we can prepay for? Or invest in things that are legit needs of business to offset via deductions?