Images: Gram-positive Rods (GPRs) Recovered From Culture

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The page below is a sample from the LabCE course Reading Gram-stained Smears From Cultures. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Images: Gram-positive Rods (GPRs) Recovered From Culture

Bacillus species
Lactobacillus species from culture. Long, slender gram-positive bacilli, arranging in short chains, are shown in this field of view.
Corynebacterium diphtheriae from culture. Illustrated are gram-positive bacilli arranged in a distinct "diphtheroidal" pattern.

Beaded GPRs, consistant with Nocardia species