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.
Fine Tuning. When a piano is cared for correctly, that is to say, tuned and maintained on a regular basis (at least once a year, but twice is recommended) the instrument should just require a fine tuning. Each one of the 220 or so strings needing a fine or small adjustment to get the instrument into perfect tune.