Test Index - M

Mean corpuscular volume (MCV)     see FBC
Mean corpuscular haemoglobin (MCH)     see FBC
Mean corpuscular haemoglobin concentration (MCHC)     see FBC
Measles
see diagnostic virology for meningitis/encephalitis, and maculopapular rash ± fever,
Mercury (urine) - no longer recommended due to stability issues.
Metabolic stone screen    see renal stone former investigations
Metanephrines (urine)     see metadrenalines (urine)
Methaemalbumin - test no longer available.
Methoxytyramine   see metadrenalines (urine)
Microalbuminuria    see albumin (urine)
Microbiology and Infection tests - use A to Z index or search function to look up tests individually.
Monoclonal bands    see serum protein electrophoresis
Monocytes     see FBC
Muscle-specific tyrosine kinase antibody     see MuSK antibody
Mycological investigation     see scrapings/ clippings for mycological investigation
Myelin-associated glycoprotein antibody     see MAG antibody
Myelin-oligodendrocyte glycoprotein antibodies     see MOG antibodies
Myoglobin, urine - no longer available. Instead suggest serum CK and U&E.
Mysoline    see phenobarbitone