Hyponatremia is commonly defined as a serum sodium concentration below 135 meq/L but can vary to a small degree in different clinical laboratories [1,2]. The dilutional fall in serum sodium is in most patients associated with a proportional reduction in the serum osmolality (ie, to a level below 275 mosmol/kg), but there are some exceptions.
The iron worker, Gary Russo, sounded like Frank Sinatra and wowed pedestrians a few years ago with his singing by a 2nd Avenue subway construction site in Manhattan during his lunch breaks.
Sinatra developed an interest in music, particularly big band jazz, at a young age. He listened to Gene Austin, Rudy VallÃ©e, Russ Colombo, and Bob Eberly, and idolized Bing Crosby. Sinatra's maternal uncle, Domenico, gave him a ukulele for his 15th birthday, and he began performing at family gatherings.