Medical Terms Continued (From page 1) —Salvage chemotherapyChemotherapy given after recurrence of a tumor.
Schmorl's nodeAn upward and downward protrusion (pushing into) of a spinal disk's soft tissue into the bony tissue of the adjacent vertebrae (the bony building blocks of the spine). Schmorl's nodes are detectable with an x-ray test as a spine abnormality . Schmorl's nodes are most common in the middle and lower spine. Schmorl's nodes are common, especially with minor degeneration of the aging spine. Schmorl's nodes usually cause no symptoms, but reflect that "wear and tear" of the spine has occurred over time. Schmorl's nodes are a helpful x-ray finding as an indicator of degenerative process that may be affecting a patient's spine. CadmiumA metallic element whose salts are toxic and cause cancer. Cadmium and cadmium compounds were upgraded in 2000 by the US government to the status of "known human carcinogens." These materials are used in batteries, coating and plating, plastic and synthetic products and alloys, and have been found to carry an increased risk of lung cancers in workers exposed to cadmium and cadmium compounds. p.r.n.Abbreviation meaning "when necessary" (from the Latin "pro re nata", for an occasion that has arisen, as circumstances require, as needed). One of a number of hallowed abbreviations of Latin terms that have traditionally been used in prescriptions. Some others: · a.c. = before meals (from "ante cibum", before meals) · b.i.d. = twice a day (from "bis in die", twice a day) · gtt. = drops (from "guttae", drops) · p.c. = after meals (from "post cibum", after meals) · p.o. = by mouth, orally (from "per os", by mouth) · q.d. = once a day (from "quaque die", once a day) · q.i.d. = four times a day (from "quater in die", 4 times a day) · q._h.: If a medicine is to be taken every so-many hours (from "quaque", every and the "h" indicating the number of hours) · q.h. = every hour · q.2h. = every 2 hours · q.3h. = every 3 hours · q.4h. = every 4 hours · t.i.d. = three times a day (from "ter in die", 3 times a day) ut dict. = as directed (from "ut dictum", as directed) Source for Medical Terms: http://www.medterms.com
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