During a prenatal visit, the nurse considers ordering a urine toxicology screen after the mother discloses occasional meth use. According to ACOG guidelines. what is the nurse's best approach?

Rationale: A. Refusing testing ignores the opportunity to assess maternal and fetal health risks and provide appropriate interventions. B. Performing the test and immediately notifying CPS without consent violates ethical and legal standards; reporting is required only in specific circumstances and after appropriate counseling. C. Collecting the specimen without discussion undermines patient autonomy and informed consent, potentially damaging trust. D. Obtaining informed consent, explaining the purpose of the test, and documenting respectfully aligns with ACOG guidelines, ensures ethical practice, supports patient autonomy, and allows for appropriate follow-up care and counseling if the result is positive.