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.
Pianos that have not been tuned for at least year or two, or have undergone a drastic climatic change, typically require what is called a âpitch raiseâ (basically a double tuning), and the rate will be between $225 and $300 (within our normal service area).