The majority of seats on most of these airlines can be reserved at. no charge, either during booking or check-in. Booking a pre-assigned premium. seat (including exit rows and window and aisle seats near the front of the. aircraft) will incur a surcharge. Elite frequent-flyer members are usually. exempt.
Answer by Deb Answers. Confidence votes 84.9K. Amorphous Urates indicates uric acid crystals in the urine. Higher than acceptable levels of uric acid crystals in urine can be caused by gout, Lesch-Nyhan syndrome, cardiovascular disease, diabetes, uric acid stone, urolithiasis, and metabolic syndrome.
They are also called magnesium ammonium phosphate or struvite crystals and are typically found in alkaline urine. In fact the name triple phosphate originates from an old erroneous belief that the phosphate ion was bound to 3 positive ions instead of just magnesium and ammonium.