Posteroanterior
From back to front. A chest x-ray taken with the chest against the film plate and the x-ray machine behind the patient is a posteroanterior (PA) view. As opposed to anteroposterior (AP).
For a more complete listing of terms used in medicine for spatial orientation, please see the entry to “Anatomic Orientation Terms”.
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The most common complication of shingles, persistence of the pain associated with shingles beyond 1 month, even after the rash is gone. The pain can be severe and debilitating, and it occurs primarily in persons over age 50. The pain of postherpetic neuralgia can be reduced by certain medications including tricyclic antidepressant medications and some […]
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A baby born 2 weeks (14 days) or more after the usual 9 months (280 days) of gestation. The gestation (length of the pregnancy) is calculated from the date of the last menstrual period (LMP). This is an important calculation since, if delivery is delayed 3 weeks beyond term, the infant mortality rate skyrockets to […]
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