In North America, added qualificatio in critical care medicine are obtained after board certification in a primary ecialty such as pediatrics, internal medicine, surgery, or anesthesiology.

• 在北美地区，额外的危重病护理医学资格是在其有了基本的专科证书---如儿科、内科、外科或麻醉科等专科资格证书---后获得的。