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lead

lead poisoning

see also:

introduction

  • children are most at risk as lead is absorbed at a faster rate compared to adults and their faster growth and development makes them more susceptible

clinical features

acute poisoning

  • pain, muscle weakness, paraesthesia, and, rarely, symptoms associated with encephalitis.
  • metallic taste
  • abdominal pain, nausea, vomiting, diarrhoea, and constipation, large ingestions may cause shock due to GIT losses
  • haemolysis
  • survivors may develop chronic lead poisoning symptoms

chronic poisoning

  • loss of short-term memory or concentration, depression, nausea, abdominal pain, loss of coordination, and numbness and tingling in the extremities
  • fatigue, problems with sleep, headaches, stupor, slurred speech, and anemia
  • blue line along the gum, with bluish black edging to the teeth, known as Burton line
  • hyperkinetic or aggressive behavior disorders in children
  • permanent mental retardation in children
  • FBE may show may reveal basophilic stippling of red blood cells
  • bood lead levels are an indicator mainly of recent or current lead exposure, not of total body burden.
  • a radiographic sign of elevated lead levels is the presence of radiodense lines called lead lines at the metaphysis in the long bones of growing children, especially around the knees.
lead.txt · Last modified: 2011/11/15 17:19 (external edit)