Table 3.
Typical toxicities of the most encountered metals and metalloids, and their treatment
Metal | Acute | Chronic | Toxic concentration | Treatment |
---|---|---|---|---|
As | Nausea, vomiting, “rice-water” diarrhea, encephalopathy, multi-organ dysfunction syndrome, long QT syndrome, painful neuropathy | Diabetes, hypopigmentation/hyperkeratosis, cancer: lung, bladder, skin, encephalopathy | 24 h urine: ≥50 µg/L urine, or 100 µg/g creatinine | BAL (acute, symptomatic) |
Succimer | ||||
DMPS (Europe) | ||||
Cr | GI hemorrhage, hemolysis, acute renal failure (Cr6+ ingestion) | Pulmonary fibrosis, lung cancer (inhalation) | No clear reference standard | N-cetylcysteine (experimental) |
Co | Beer drinker’s (dilated) cardiomyopathy | Pneumoconiosis (inhaled); goiter | Normal excretion: 0.1-1.2 µg/L (serum) 0.1-2.2 µg/L (urine) | NAC |
CaNa2 EDTA | ||||
Hg | Elemental (inhaled): fever, vomiting, diarrhea, acute lung injury; Inorganic salts (ingestion): caustic gastroenteritis | Nausea, metallic taste, gingivostomatitis, tremor, neurasthenia, nephrotic syndrome; hypersensitivity (Pink disease) | Background exposure “normal” limits: 10 µg/L (whole blood); 20 µg/L (24-h urine) | BAL |
Succimer | ||||
2,3-dimercapto-1-propane-sulfonic acid | ||||
Pb | Nausea, vomiting, encephalopathy (headache, seizures, ataxia, obtundation) | Encephalopathy, anemia, abdominal pain, nephropathy, foot-drop/wrist-drop | Pediatric: symptoms or [Pb] ≥45 µ/dL (blood); Adult: symptoms or [Pb] ≥70 µg/dL | BAL |
CaNa2 EDTA | ||||
Succimer |