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Pediatric Terrorism and Disaster Preparedness: A ... - PHE Home

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Table 4.4a.<br />

Diagnostic tests for anthrax<br />

Anthrax type<br />

Cutaneous<br />

Inhalational<br />

Gastrointestinal<br />

Diagnostic tests<br />

Vesicular fluid <strong>and</strong> blood culture (anaerobic <strong>and</strong> aerobic)<br />

Blood culture, CSF, chest radiograph, CT scan<br />

Blood culture<br />

Table 4.4b.<br />

Test<br />

CBC<br />

Chest<br />

radiograph<br />

Nasal swab<br />

Adjunctive diagnostic tests for anthrax<br />

Comments<br />

WBC may be normal or slightly increased.<br />

Increased neutrophils or b<strong>and</strong> forms common.<br />

Leukopenia or lymphocytosis does not support diagnosis of anthrax.<br />

Frequently abnormal in inhalational anthrax; may show signs of mediastinal<br />

widening, paratracheal or hilar fullness, pleural effusions, pulmonary<br />

infiltrates (uni- or multilobar), <strong>and</strong> mediastinal lymph<strong>and</strong>enopathy; changes<br />

may be subtle <strong>and</strong> better defined on chest CT.<br />

May assist in epidemiologic investigations but should not be relied on as a<br />

guide for prophylaxis or treatment of individual patients.<br />

103

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