Hx

See also: hx

English

Alternative forms

• hx

Etymology

Formed by analogy with Rx, variant of ℞ (“prescription”), abbreviation of Latin recipe (“take”). Compare also Dx (“diagnosis”).

Noun

Hx (uncountable)

1. (medicine) Abbreviation of history.
   • 1987, American Society for Microbiology, Program and abstracts of the Twenty-Seventh Interscience Conference on Antimicrobial Agents and Chemotherapy: 4-7 October 1987, page 171:

     The purpose of this study was to see if U.u. is more commonly found in children ages 1-12 years with a Hx of sexual contact than those without such a Hx.

   • 2005, Michael L. Perlis, Michael T. Smith, Carla Jungquist, Donn Posner, editors, Cognitive behavioral treatment of insomnia: a session-by-session guide, →ISBN, page 126:

     Of particular importance is that both sleepiness measures (along with a Hx of OSA) suggest that the patient may be at risk, […]

   • 2010, Carlos Ayala, Brad Spellberg, Boards and Wards, fourth edition, page 553:

     His Hx of imprisonment and homelessness are risk factors for TB, and his bilateral upper lobe infiltrates are in the appropriate location for reactivation TB.