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Medical necessity is a legal doctrine in the United States related to activities that may be justified as reasonable, necessary, and/or appropriate based on evidence-based clinical standards of care. In contrast, unnecessary health care lacks such justification.
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
Meaning Origin language and etymology Example(s) halluc-to wander in mind Latin ālūcinor, to wander in mind hallucinosis, hallucination hem(at)-, haem(ato)-of or pertaining to blood: Latin hæma [citation needed], from Greek αἷμα, αἱματ-(grc), blood hematology, older form haematology: hema-, hemo-blood Greek αἷμα, (grc), blood
Pronunciation follows convention outside the medical field, in which acronyms are generally pronounced as if they were a word (JAMA, SIDS), initialisms are generally pronounced as individual letters (DNA, SSRI), and abbreviations generally use the expansion (soln. = "solution", sup. = "superior").
Medical terminology is a language used to precisely describe the human body including all its components, processes, conditions affecting it, and procedures performed upon it. Medical terminology is used in the field of medicine .
if there is a need s.s., SS semisse: one-half [or] sliding scale mistaken for "55" or "1/2" SSI sliding scale insulin or sliding scale regular insulin: mistaken to mean "strong solution of iodine" or "selective serotonin reuptake inhibitor". See also SSRI: SQ subcutaneously "SQ" can be mistaken for "5Q" meaning "5 every dose". See also SC: SSRI
List of medical abbreviations: Overview; List of medical abbreviations: Latin abbreviations; List of abbreviations for medical organisations and personnel; List of abbreviations used in medical prescriptions; List of optometric abbreviations
Meaning s̅: without (s with an overbar) (from Latin sine) S: sacrum: S x: symptoms surgery (though deemed by some as inappropriate) S 1: first heart sound: S 2: second heart sound: S 3: third heart sound S 4: fourth heart sound S&O: salpingo-oophorectomy Sb: Scholar batch SAAG: serum–ascites albumin gradient SAB: staphylococcal bacteremia