The cardiology lab provides inpatient/outpatient cardiovascular testing. Cardiology performs electrocardiogram (EKG), Holter monitors, ankle-brachial index (ABI) and stress tests. Cardiovascular ultrasounds include EKGs, venous/arterials and carotid ultrasounds. Direct services include EKG, Holter monitors, stress test, ABI and venous ultrasounds. Arterial/carotid ultrasounds and pediatric EKG are not a direct service and require a Medisaw referral approval.