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  2. List of medical abbreviations: R - Wikipedia

    en.wikipedia.org/wiki/List_of_medical...

    Abbreviation Meaning R: respiration, (right) RA: refractory anemia rheumatoid arthritis right atrium room air RAD: reflex anal dilatation right axis deviation reactive airway disease radiation absorbed dose reactive attachment disorder: Rad hys: radical hysterectomy: RAE: right atrial enlargement RAI: radioactive iodine: RAIU: thyroid reactive ...

  3. List of medical abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_medical_abbreviations

    Acronyms for Medical & Dental professional organizations; Medical Abbreviations for iPhone; Medical abbreviations on mediLexicon; Medical acronyms and abbreviations on allacronyms.com; Over 20,000 medical abbreviations sorted into specialist categories; Medical abbreviations in various categories such as Physiology, Oncology, Laboratory and more

  4. Meaning [1] Latin (or Neo-Latin) origin [1] a.c. before meals: ante cibum a.d., ad, AD right ear auris dextra a.m., am, AM morning: ante meridiem: nocte every night Omne Nocte a.s., as, AS left ear auris sinistra a.u., au, AU both ears together or each ear aures unitas or auris uterque b.d.s, bds, BDS 2 times a day bis die sumendum b.i.d., bid, BID

  5. List of optometric abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_optometric...

    Family medical history FOH: Family ocular history F/U: Follow up appointment GH: General health G(M)P: General (medical) practitioner HA: Headaches HARC: Harmonious abnormal retinal correspondence HM: Hand motion vision – state distance Hx: History IOL: Intra-ocular lens IOP: Intra-ocular pressure ISNT: Inferior, Superior, Nasal, Temporal

  6. Roentgen equivalent man - Wikipedia

    en.wikipedia.org/wiki/Roentgen_equivalent_man

    The roentgen equivalent man (rem) [1] [2] is a CGS unit of equivalent dose, effective dose, and committed dose, which are dose measures used to estimate potential health effects of low levels of ionizing radiation on the human body.

  7. Dosimetry - Wikipedia

    en.wikipedia.org/wiki/Dosimetry

    By definition, 1 Gy = 100 rad and 1 Sv = 100 rem. The fundamental quantity is the absorbed dose (D), which is defined as the mean energy imparted [by ionising radiation] (dE) per unit mass (dm) of material (D = dE/dm) [8] The SI unit of absorbed dose is the gray (Gy) defined as one joule per kilogram. Absorbed dose, as a point measurement, is ...

  8. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    Meaning SI unit of measure alpha: alpha particle: angular acceleration: radian per second squared (rad/s 2) fine-structure constant: unitless beta: velocity in terms of the speed of light c: unitless beta particle: gamma: Lorentz factor: unitless photon: gamma ray: shear strain: radian

  9. Gas constant - Wikipedia

    en.wikipedia.org/wiki/Gas_constant

    T is the temperature, T TPW = 273.16 K by the definition of the kelvin at that time; A r (Ar) is the relative atomic mass of argon and M u = 10 −3 kg⋅mol −1 as defined at the time. However, following the 2019 revision of the SI, R now has an exact value defined in terms of other exactly defined physical constants.