A 36-year-old emergency medical technician (EMT) is exposed to a patient with brucellosis. Blood cultures are drawn from the EMT and reported as negative after 1 week. Which of the following statements explains this discrepancy?
a. The blood culture system is most likely not correctly functioning.
b. Brucella does not grow in the blood.
c. The blood culture bottles are most likely expired.
d. The blood should have been incubated for a minimum of 3 weeks.
D
Brucella spp. may grow slowly; therefore cultures must be incubated for a minimum of 3 weeks. Cultures should be handled in a biologic safety cabinet.
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