What do the following 3 terms all have in common: cold claim review, case review, and pattern review? A. They are all types of retrospective utilization management b. They are all types of prospective utilization management c. They are all types of concurrent utilization management d. They are all types of case managementWhich of the following is a reason that concurrent utilization review may be used? (There may be more than one answer.) Reviewing medical necessity Shortening the length of hospital stays Substituting other types of care Reducing medically necessary care