Glucose Tolerance Test (GTT). GTT is an abbreviation for Glucose Tolerance Test, which is a measure of the amount of glucose present in the blood stream of a person at the time the test is taken. This test is usually done to check for glucose related problems like hyperglycemia or hypoglycemia in the patient.
Contemporary R&B, also known as simply R&B, is a music genre that combines elements of rhythm and blues, soul, funk, pop, hip hop and dance.
In the 2000s, the abbreviation R&B is almost always used instead of the full ârhythm and bluesâ, and mainstream use of the term usually refers to contemporary R&B, which is a modern version of soul and funk-influenced pop music that originated as disco faded from popularity. 1  Classic Soul/R&B (5).