Category: M

A diagnostic procedure to detect the presence of certain tumors that secrete antigens picked up by monoclonal antibodies.  

A culture that contains two or more different strains of organisms.    

The total amount of air exhaled from the lungs each minute (tidal volume multiplied by the respiratory rate per minute). The volume of air inhaled and exhaled in 60 sec.  

A urine specimen collected during the middle of the urine flow, done after the urinary opening (meatus) has been carefully cleaned.  

A laboratory test done to diagnose syphilis.  

A compound found in the blood following ingestion of nitrates, aspirin substitutes, and food preservatives. A substance formed when the iron atoms of the blood pigment hemoglobin have been oxidized from the ferrous to the ferric form (compare oxyhemoglobin). Methemoglobin cannot bind molecular oxygen and therefore cannot transport oxygen around the body. The presence of…

One of the principal causes of meningitis. Meningococcus organisms (Neisseria meningitidis) may enter the bloodstream and cause meningococcemia, a generalized infection.  

A measure of hemoglobin concentration in the average red blood cell; expressed as a ratio of hemoglobin to volume of packed red cells.  

A measure of the average hemoglobin content per red blood cell.  

A blood test for syphilis. Normal value in serum: negative.