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Blood lead level (BLL), is a measure of the amount of lead in the blood. [1] [2] Lead is a toxic heavy metal and can cause neurological damage, especially among children, at any detectable level. High lead levels cause decreased vitamin D and haemoglobin synthesis as well as anemia, acute central nervous system disorders, and possibly death. [3]
In adults, blood lead levels steadily increase with increasing age. [25] In adults of all ages, men have higher blood lead levels than women do. [25] Children are more sensitive to elevated blood lead levels than adults are. [254]
Some cases in adult women have been detected using maternal screening programs or following birth of children with birth defects. Elevated phenylalanine levels are associated with neuropsychological effects. [citation needed]
Over 170 million U.S.-born people who were adults in 2015 were exposed to harmful levels of lead as children, a new study estimates. Researchers used blood-lead level, census and leaded gasoline ...
“As it stands," Houlihan added, "the new lead limits for commercial baby foods would reduce children’s total dietary lead exposure by less than 4% — a negligible improvement.” Read the ...
Elevated blood lead levels (BLLs) in adults can damage the nervous, hematologic, reproductive, renal, cardiovascular, and gastrointestinal systems.. Current research continues to find harmful effects in adults at BLLs previously considered harmless, such as decreased renal function associated with BLLs at 5 micrograms per deciliter (μg/dL) and lower, and increased risk of hypertension and ...
AFP is normally elevated in infants, and because teratoma is the single most common kind of tumor in infants, several studies have provided reference ranges for AFP in normal infants. [5] [6] [7] Perhaps the most useful is this equation: log Y = 7.397 - 2.622.log (X + 10), where X = age in days and Y = AFP level in nanograms per milliliter. [8]
Children are more commonly affected, but most children recover without permanent damage to their health, although some children may have serious and sometimes life-threatening complications. [6] Adults, especially the elderly, may show a more complicated presentation. [2] [6] Complications may include neurological problems and heart failure. [1]