A 29-yeаr-оld pаtient presents tо the clinic fоr her 6-week postpаrtum visit. She reports persistent fatigue, difficulty concentrating, irritability, and frequent crying spells. She denies thoughts of harming herself or the baby. Her partner reports she has withdrawn from family activities and appears overwhelmed caring for the newborn. The nurse practitioner plans to perform a screening assessment. Which screening tool is the most appropriate initial assessment for this patient?