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.
Remarkably, these were CaP crystals while the urine was also supersaturated with CaOx (18). From these observations, it was concluded that renal stone formation does not involve the retention of CaOx crystals in the nephrons (32). This is not the first time that investigators searched for crystals in the kidney.