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.
What it could mean when amorphous sediment is found in urine is  that the temperature of the urine may have been out of range at the  time of the test. It could also mean th â¦ at the patient was  dehydrated while the test was done. 3 people found this useful.
Leucine crystals in Urine. 1  Leucine crystals are abnormal in urine.  Appearance: yellow-brown spheroids with concentric rings around the outer edge and radial striations in the center.