Continuous standing for prolonged periods (more than 2 consecutive hours in an 8 hour day), Continuous walking for prolonged periods (more than 2 hours at a time in an 8 hour day), Driving a personal auto or company car or truck, or a powered piece of material handling equipment . The i-STAT System has the industry’s most comprehensive menu of tests in a single, with-patient platform, including tests for blood gases, electrolytes, chemistries, coagulation, hematology, glucose, and cardiac markers.