Table 5.2. Chemical Weapons—Summary of Pediatric Management Considerations
| Agent |
Toxicity |
Clinical Findings |
Onset |
Decontaminationa |
Management |
| Nerve Agents |
Tabun
Sarin
Soman
VX |
Anticholinesterase: muscarinic, nicotinic, and CNS effects. |
Vapor: miosis, rhinorrhea, dyspnea.
Liquid: diaphoresis, vomiting.
Both: coma, paralysis,
seizures, apnea. |
Vapor: seconds.
Liquid: minutes-hours. |
Vapor: fresh air, remove clothes, wash hair.
Liquid: remove
clothes, copious washing of skin and hair with soap and water, ocular
irrigation. |
ABCs.
Atropine: 0.05 mg/kg IVb, IMa (min 0.1 mg, max 5 mg), repeat
q2-5 min prn for marked secretions, bronchospasm.
Pralidoxime: 25 mg/kg IV, IM (max 1 g IV; 2 g IM), may repeat within
30-60 min prn, then again every hour for 1 or 2 doses prn for persistent
weakness, high atropine requirement.
Diazepam: 0.3 mg/kg (max 10 mg) IV; lorazepam: 0.1 mg/kg IV, IM (max
4 mg); midazolam: 0.2 mg/kg (max 10 mg) IM prn for seizures or severe
exposure. |
| Vesicants |
| Mustard |
Alkylation |
Skin erythema, vesicles, ocular inflammation, respiratory tract inflammation. |
Hours. |
Wash skin with soap and water, ocular irrigation (major impact only
if done within min of exposure). |
Symptomatic care. |
| Lewisite |
Arsenical |
As above. |
Immediate pain. |
As above. |
Possibly BAL 3 mg/kg IM q4-6hr for systemic effects in severe
cases. |
| Pulmonary Agents |
Chlorine
Phosgene |
Liberate HCL, alkylation. |
Eyes, nose, throat irritation (especially chlorine); bronchospasm,
pulmonary edema (especially phosgene). |
Minutes: eyes, nose, throat irritation; bronchospasm.
Hours: pulmonary
edema. |
Fresh air, wash skin with water. |
Symptomatic care. |
| Cyanide |
Cyanide
|
Cytochrome oxidase inhibition: cellular anoxia, lactic acidosis. |
Tachypnea, coma, seizures, apnea. |
Seconds. |
Fresh air, wash skin with soap and water. |
ABCs, 100% oxygen.
Sodium bicarbonate prn for metabolic acidosis
Sodium nitrite (3%):
Dosage (mL/kg) Estimated
Hgb (g/dL)
0.27 10.
0.33 12
(est. for avg. child).
0.39 14 (max 10 mL).
Sodium thiosulfate (25%): 1.65 mL/kg (max 50 mL). |
| Riot Control Agents |
CS
CN (eg, Mace®)
Capsaicin (pepper spray)
|
Neuropeptide substance P release; alkylation. |
Ocular pain, tearing, blepharospasm; nose and throat irritation; pulmonary
failure (rare). |
Seconds. |
Fresh air, ocular irrigation. |
Topical ophthalmics, symptomatic care. |
a Should be performed by health care providers garbed
in adequate personal protective equipment, especially if victims have had
significant exposure to nerve agents or vesicants. For emergency department
staff, adequate personal
protective equipment (PPE) consists of a non-encapsulated, chemically resistant
body suit, boots, and gloves with a full-face air purifier mask/hood.
b Intraosseous route likely equivalent
to intravenous.
c Atropine via endotracheal tube
or inhalation, or aerosolized ipratropium of possible benefit.
Note: ABCs = airway, breathing, and circulatory support; BAL=
British anti-lewisite; Hgb= hemoglobin concentration; prn = as needed; CNS = central nervous system ; IM = intramuscular.
Source: Adapted from Henretig FM, Cieslak TJ, Eitzen EM Jr. Biological and
chemical terrorism. J Pediatr 141:311-26 © 2002,
with permission from Elsevier.
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