Answer by  
                                                                                          MedStudent01 (1131)
                                                            
                          
                          
                                                          The C-reactive protein blood test measures levels of this protein in your blood.  It is a nonspecific marker of inflammation; an elevated level means there is inflammation occurring in your body, though it will not say what the cause is.  Culprits include infection, heart attack, and immune disorders.