The differential should include other causes of hemolysis, such as that found in non-immune hemolytic anemia including intrinsic red cell defects, hemolysis due to extrinsic factors (ie trugs or toxins) as well as mechanical damage hemolytic anemia as found in DIC and HUS.
There are typically three classes, or groups, or antibiotics healthcare providers will use when treating bacterial pneumonia: 1  Beta-lactams: Recommended drugs in this class include high-dose amoxicillin (Amoxil), amoxicillin-clavulanate (Augmentin), cefpodoxime (Vantin), and cefuroxime (Ceftin).
Several classes of antibiotics are effective against atypical pathogens. However, because C. pneumoniae and Legionella species are intracellular organisms and M. pneumoniae lacks a cell wall, beta-lactams are not effective. Erythromycin and, in some cases, tetracycline have been traditional choices for the treatment of pneumonia caused by atypical pathogens. There are few (if any) clinical trials demonstrating the efficacy of erythromycin for Legionella infection.