Which client should a nurse prioritize for assessment in a postpartum unit?

The client who has preeclampsia and reports a sudden severe headache is the priority for assessment in a postpartum unit due to the potential severity of the condition. Preeclampsia is characterized by high blood pressure and can lead to complications such as eclampsia, which involves seizures. A sudden severe headache can be a warning sign of worsening preeclampsia or even the development of neurological symptoms, indicating an emergency situation that requires immediate evaluation and intervention.

In contrast, clients with mild edema, mild abdominal cramping, and stable vital signs may still need attention, but their conditions are generally less urgent and not immediately life-threatening. Therefore, prioritizing the client with preeclampsia who exhibits alarming symptoms aligns with the critical nature of nursing assessments, particularly in a postpartum setting where complications may arise rapidly.