A protocol for a systematic review of the effectiveness of interventions to reduce exposure to lead through consumer products and drinking water

Table 1 Signs and symptoms associated with lead toxicity [[14]]

Mild toxicity	Moderate toxicity	Severe toxicity
Myalgia and paraesthesia	Arthralgia	Paresis and paralysis
Mild fatigue	General fatigue	Colic
Irritability	Difficulty concentrating	Lead line (blue-black) on gingival tissue
Lethargy	Muscular exhaustibility	Encephalopathy, sometimes leading to seizures, changes in consciousness, coma and death
Occasional abdominal discomfort	Tremor
	Headache
	Diffuse abdominal pain
	Vomiting
	Weight loss
	Constipation

ISSN: 2046-4053