Previously, clinicians often had to wait an average of 6 hours with the lower-sensitivity, lower-precision cTn assays to see a conclusive increase in plasma cTn levels after the first troponin measurement, but today's high-sensitivity cTn tests that are separated by a mere 2 to 3 hours can be highly informative.
Dr. Daniel Hay, DO is a family medicine doctor who practices in Orlando, FL. He is 47 years old and has been practicing for 17 years.
But it is a fine line. Straw and hay both begin life the same wayâas a field crop. The word 'hay' refers to the entire harvested plant, including the seed heads. Most hay is grown to be used as animal feed, and is generally, as Mary Beth correctly notes, timothy, rye, alfalfa or a specialized grass.