Final answer:
To differentiate between Staphylococcus aureus and Staphylococcus epidermidis, the lab technician can perform the coagulase test and the catalase test. These tests help differentiate between the two species based on specific characteristics exhibited by each.
Step-by-step explanation:
In order to differentiate between Staphylococcus aureus and Staphylococcus epidermidis, there are several tests that can be performed in a clinical microbiology lab. The coagulase test is one such test, which differentiates S. aureus from other staphylococci. S. aureus is coagulase-positive, meaning it produces the enzyme coagulase, while S. epidermidis is coagulase-negative.
Another test that can be used is the catalase test, which distinguishes between Staphylococcus and Streptococcus. Staphylococcus species are catalase-positive, while Streptococcus species are catalase-negative. Other methods for differentiation may include performing various genetic tests for further identification of specific strains of S. aureus. These tests can help determine the best course of antibiotic treatment for the infection.