Depending on the nature of<unk> , an appropriate sample is collected for<unk>  identification. Pneumococci are typically gram positive, cocci, seen in pairs or chains. When cultured on blood agar plates with added optochin antibiotic disk, they show alpha-hemolytic colonies and a clear zone of inhibition around the disk meaning they're sensitive to the antibiotic. Pneumococci are also bile soluble. Just like other streptococci, it's catalase negative. Quellung test to identify specific capsular polysaccharides may also be done.
Streptococcus pneumoniae infection laboratory findings
Mycoplasma pneumonia laboratory findings
Community-acquired pneumonia laboratory findings
Hospital-acquired pneumonia laboratory findings
Nocardiosis laboratory findings
Bacterial pneumonia laboratory findings
Typhus laboratory findings
Aspergillosis laboratory findings