Although the risk for fracture associated with long-term levothyroxine is low, iatrogenic hyperthyroidism should be avoided. TSH should be monitored closely according to published guidelines, particularly in patients at risk for fracture.lthough the risk for fracture associated with long-term levothyroxine is low, iatrogenic hyperthyroidism should be avoided. TSH should be monitored closely according to published guidelines, particularly in patients at risk for fracture.
For other uses, see Regan (disambiguation). Regan, and its cognates O'Regan, O Regan, Reagan, O'Reagan, is an Anglicized form of the Irish surname Ã³ RiagÃ¡in or Ã³ RÃ­ogÃ¡in, (from RiagÃ¡n) derived from the Irish personal name RiagÃ¡n, which is of uncertain origin but may come from riagach, meaning angry or impulsive. It is also a unisex given name.
Last name origins & meanings: 1  French: topographic name for someone who lived in a clearing, Old French essart (Late Latin exsartum, past participle of exsarire âto weed outâ, âgrub upâ), with the definite article lâ , or a habitational name from various places named Lessard or Lessart from this word. French: topographic name for someone who lived in a clearing, Old French essart (Late Latin exsartum, past participle of exsarire âto weed outâ, âgrub upâ), with the definite article lâ , or a habitational name from various places named Lessard or Lessart from this word.