Christian Hospital and Northwest HealthCare are the latest healthcare firms to sign on to use A4 Health Systems emergency department information system.

The program is designed to streamline emergency department services.

Both clients are part of BJC HealthCare. The system’s Barnes-Jewish Hospital in St. Louis, and Barnes-Jewish St. Peters Hospital in St. Peters, Mo., have used A4 services since 2001. BJC HealthCare has 26,000 employees and annual revenues of $2.4 billion.

A4 HealthCare: