Isotonic Maintenance Fluids for the Prevention of Hospital-Acquired Hyponatremia. The use of isotonic fluids in maintenance fluids for the prevention of hospital-acquired hyponatremia in acutely ill patients was initially controversial,58,59 owing mainly to the potential for unintended consequences.
Twice a year according to the book. Some pianos are very stable but some are ready for a tuning after a few months. New pianos need more regular tuning, usually four times a year for the first few years until the âstretchâ is out of the strings. Should you transport your piano to another house, it will need a month to acclimatise to its new surroundings.
About your piano and piano tuning... 1  Your piano may need more than one tuning. 2  Strings can break during a piano tuning. 3  Some pianos can't hold a tune without extensive rebuilding. 4  If your piano is not tuneable, you will still need to pay the tuner for the visit.