While those levels are unhealthy for prolonged periods, they are far from fatal.
From the kentucky.com
Severe and prolonged anemia can damage vital organs by depriving them of oxygen.
From the sciencedaily.com
When the QT interval is prolonged, the heart is more susceptible to arrhythmias.
From the sciencedaily.com
In prolonged dry weather, many of these tanks become little more than mud holes.
From the chron.com
Colonel Gaddafi's prolonged absence has fuelled speculation that he was injured.
From the independent.co.uk
The prolonged crisis is draining belief in the euro and smothering the recovery.
From the economist.com
Neuheisel prolonged the Bruins'agony by calling timeouts, a gesture of defiance.
From the latimes.com
Steroid use in the Army has been on the rise amid a prolonged period of warfare.
From the kentucky.com
Prolonged snow cover in the spring increases mortality and reduces reproduction.
From the sciencedaily.com
More examples
Drawn-out: relatively long in duration; tediously protracted; "a drawn-out argument"; "an extended discussion"; "a lengthy visit from her mother-in-law"; "a prolonged and bitter struggle"; "protracted negotiations"
Elongated: drawn out or made longer spatially; "Picasso's elongated Don Quixote"; "lengthened skirts are fashionable this year"; "the extended airport runways can accommodate larger planes"; "a prolonged black line across the page"
(prolong) lengthen in time; cause to be or last longer; "We prolonged our stay"; "She extended her visit by another day"; "The meeting was drawn out until midnight"
(prolong) lengthen or extend in duration or space; "We sustained the diplomatic negotiations as long as possible"; "prolong the treatment of the patient"; "keep up the good work"
(prolongedly) In a prolonged manner; at length
(prolong) To extend in space or length; To lengthen in time; to extend the duration of; to draw out; to continue; To lengthen temporally; to put off to a distant time; to postpone
"Prolonged" means that your disability is likely to be long term and of indefinite duration, or is likely to result in death. This is described in the Canada Pension Plan legislation under paragraphs 42(2)(a) and 42(2)(b).
An impairment is prolonged if it has lasted, or is expected to last, for a continuous period of at least 12 months.