Symptoms of excessive blood lead levels, normal functions are affected

Excessive blood lead means that the lead content in the blood exceeds the normal standard. Excessive blood lead will affect the healthy growth of children and affect the nervous system. Children will experience symptoms such as hyperactivity, drowsiness, and slow reaction. In terms of digestion, they will experience nausea, diarrhea and other symptoms.

1. Symptoms of excessive blood lead

1. Nervous system: irritability, hyperactivity, short attention span, aggressive behavior, slow reaction, drowsiness, movement disorders. Severe cases may include mania, delirium (a temporary neurological disorder characterized by confusion, bewilderment, incoherent speech, restlessness, agitation, and often delusions or hallucinations), visual impairment, and cranial nerve paralysis. When the blood lead level is around 1000 ug/L (4.826umol/L), symptoms of lead encephalopathy such as headache, vomiting, convulsions, coma, and even death may occur.

2. Digestive system: abdominal pain, constipation, diarrhea, nausea, vomiting, etc.

3. Blood system: microcytic hypochromic anemia, etc.

4. Cardiovascular system: hypertension and arrhythmia.

5. Urinary system: aminoaciduria, glucosuria, and hyperphosphaturia in the early stage; in the late stage, patients may experience symptoms of renal failure such as azotemia.

2. Impact

1. Once children suffer from hyperleademia, they will experience symptoms such as loss of appetite, nausea, vomiting, diarrhea, constipation, and indigestion.

Excessive blood lead levels can damage the nervous system of children who are in the growth and development period, manifesting as irritability, fatigue, laziness, drowsiness, etc. Older children may show dullness, inattention, poor memory and comprehension, anemia, etc.

2. Growth retardation and reduced resistance to infection are also common manifestations. However, it must be noted that high leademia in children is often chronic and sometimes does not show any symptoms, but this does not mean that it does not cause intellectual damage to the child.