Learn MicrobesClinical microbiology & ASCP review

Enterobacteriaceae Identification Tool

Select Biochemical Test Results

Common Tests

Indole Test
Methyl Red Test
Voges Proskauer Test
Simmons' Citrate Test
Hydrogen Sulfide (H2S) Test
Urea Test
Motility Test

Decarboxylase Tests

Lysine Decarboxylase
Arginine Dihydrolase
Ornithine Decarboxylase
Phenylalanine Deaminase

Carbohydrate Fermentation

Gas from D-Glucose
Lactose Fermentation
Sucrose Fermentation
D-Mannitol Fermentation
Adonitol Fermentation
Inositol Fermentation
D-Sorbitol Fermentation
L-Arabinose Fermentation
Raffinose Fermentation
L-Rhamnose

Other Tests

Growth in KCN
Gelatin Hydrolysis
DNAse Test

Identification Result

Select positive tests above to identify the bacteria.