Usage patterns
〈人〉を患者として扱うto treat someone as a patient
At the hospital, everyone is treated equally as a patient.
患者を診るto examine a patient
The doctor examines many patients every day.
患者を治療するto treat a patient
We treat the patient with this medicine.
患者が入院するfor a patient to be admitted to hospital
A seriously ill patient was admitted to the hospital.
患者の容体the patient's condition
The patient's condition is stable.