us-abfm MCQ (SBA): Emergency Contraception

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ModerateObstetrics & GynecologyEmergency Contraceptionus-abfmus-abimus-usmle-step-2

A 26-year-old woman presents after unprotected intercourse 48 hours ago. She typically has regular cycles and is not on hormonal contraception. A urine pregnancy test today is negative. She desires emergency contraception and would also like to start ongoing contraception. Which of the following is the most effective emergency contraception option within this timeframe?

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