Medical Tests
Explore lab tests, blood work, and imaging exams with plain-language preparation and overview pages.
Browse Directory Sections
Tests starting with N (3,452)
Other
Nihilistic delusions [DI-PAD]
Other
Nikethamide [Mass/time] in 24 hour Urine
Other
Nikethamide [Mass/volume] in Urine
Other
Nikethamide [Mass] of Dose
Other
Nikethamide [Measurement] in Urine
Other
Nikethamide [Presence] in Urine
Other
Niobium [Mass/mass] in Tissue
Blood test
Niobium [Mass/volume] in Blood
Other
Niobium [Mass/volume] in Urine
Other
Niobium [Moles/mass] in Tissue
Blood test
Niobium [Moles/volume] in Blood
Other
Niobium [Moles/volume] in Urine
Other
Niobium/Creatinine [Molar ratio] in Urine
Blood test
Niraparib [Mass/volume] in Serum or Plasma
Other
Nissel.microscopic observation [Identifier] in Tissue by Cresyl echt violet stain
Other
Nitazoxanide [Susceptibility]
Other
Nitazoxanide [Susceptibility] by Disk diffusion (KB)
Other
Nitazoxanide [Susceptibility] by Minimum inhibitory concentration (MIC)
Other
Nitisinone [Moles/volume] in DBS by LC/MS/MS
Other
Nitrate [Mass/mass] in Specimen
Blood test
Nitrate [Mass/volume] in Blood
Other
Nitrate [Mass/volume] in Specimen
Other
Nitrate [Mass/volume] in Urine
Other
Nitrate [Mass/volume] in Water
Other
Nitrate [Presence] in Urine
Other
Nitrate+Nitrite [Mass/volume] in Specimen
Blood test
Nitrate+Nitrite [Moles/volume] in Serum or Plasma
Blood test
Nitrazepam [Mass/volume] in Serum or Plasma
Blood test
Nitrazepam [Mass/volume] in Serum or Plasma --trough
Blood test
Nitrazepam [Mass/volume] in Serum or Plasma by Confirmatory method
Other
Nitrazepam [Mass/volume] in Urine
Other
Nitrazepam [Mass/volume] in Urine by Confirmatory method
Other
Nitrazepam [Mass] of Dose
Blood test
Nitrazepam [Measurement] in Serum or Plasma
Other
Nitrazepam [Measurement] in Urine
Other
Nitrazepam [Moles/volume] in Gastric fluid
Blood test
Nitrazepam [Moles/volume] in Serum or Plasma
Other
Nitrazepam [Moles/volume] in Urine
Other
Nitrazepam [Presence] in Urine by Confirmatory method
Other
Nitrazepam [Presence] in Urine by Screen method
Other
Nitrazepam cutoff [Mass/volume] in Urine for Confirmatory method
Other
Nitrazepam cutoff [Mass/volume] in Urine for Screen method
Other
Nitric oxide [Moles/volume] in Exhaled gas
Other
Nitric oxide [VFr/PPres] Airway adaptor
Other
Nitric oxide [VFr/PPres] Airway adaptor --at end expiration
Other
Nitric oxide [VFr/PPres] Airway adaptor --during expiration
Other
Nitric oxide [VFr/PPres] Airway adaptor --during inspiration
Other
Nitric oxide [VFr/PPres] Gas delivery system
Other
Nitric oxide [VFr/PPres] Gas delivery system.expiratory limb --during expiration
Other
Nitric oxide [VFr/PPres] Gas delivery system.inspiratory limb --during inspiration
Other
Nitric oxide gas delivered.case [Volume] from Gas delivery system
Other
Nitric oxide gas delivered.total [Volume] in Reporting period from Gas delivery system
Other
Nitrite [Mass/mass] in Specimen
Blood test
Nitrite [Mass/volume] in Blood
Other
Nitrite [Mass/volume] in Dialysis fluid
Other
Nitrite [Mass/volume] in Specimen
Other
Nitrite [Mass/volume] in Urine
Other
Nitrite [Mass/volume] in Urine by Test strip
Other
Nitrite [Mass/volume] in Water
Blood test
Nitrite [Moles/volume] in Serum or Plasma
Other
Nitrite [Presence] in Urine
Other
Nitrite [Presence] in Urine by Automated test strip
Other
Nitrite [Presence] in Urine by Test strip
Other
Nitrobenzene [Mass/volume] in Air
Blood test
Nitroblue Tetrazolium Test (NBT) [Presence] in Blood
Blood test
Nitroblue Tetrazolium Test (NBT) [Units/volume] in Blood
Blood test
Nitrofurantoin [Mass/volume] in Serum or Plasma
Other
Nitrofurantoin [Mass] of Dose
Other
Nitrofurantoin [Susceptibility]
Other
Nitrofurantoin [Susceptibility] by Disk diffusion (KB)
Other
Nitrofurantoin [Susceptibility] by Gradient strip
Other
Nitrofurantoin [Susceptibility] by Minimum inhibitory concentration (MIC)
Other
Nitrofurantoin [Susceptibility] by Minimum lethal concentration (MLC)
Other
Nitrofurantoin [Susceptibility] by Serum bactericidal titer
Blood test
Nitrofurantoin induced platelet IgG Ab [Presence] in Serum or Plasma by Flow cytometry (FC)
Blood test
Nitrofurantoin induced platelet IgM Ab [Presence] in Serum or Plasma by Flow cytometry (FC)
Other
Nitrofurazone [Susceptibility]
Other
Nitrofurazone [Susceptibility] by Minimum inhibitory concentration (MIC)
Other
Nitrogen [Mass/mass] in 24 hour Stool
Other
Nitrogen [Mass/mass] in Stool by Infrared spectroscopy
Other
Nitrogen [Mass/time] in 24 hour Stool
Other
Nitrogen [Mass/time] in 24 hour Urine
Other
Nitrogen [Mass/time] in 72 hour Stool
Other
Nitrogen [Mass/volume] in Air
Other
Nitrogen [Mass/volume] in Dialysis fluid
Other
Nitrogen [Mass/volume] in Exhaled gas
Other
Nitrogen [Mass/volume] in Stool
Other
Nitrogen [Mass/volume] in Urine
Other
Nitrogen [Measurement] in Stool
Other
Nitrogen [Measurement] in Urine
Other
Nitrogen [Moles/mass] in 24 hour Stool
Other
Nitrogen [Moles/time] in 24 hour Body fluid
Other
Nitrogen [Moles/time] in 24 hour Stool
Other
Nitrogen [Moles/time] in 24 hour Urine
Other
Nitrogen [Moles/volume] in 24 hour Urine
Other
Nitrogen [Moles/volume] in Urine
Other
Nitrogen [Presence] in Sweat
Other
Nitrogen [VFr/PPres] Airway adaptor
Other
Nitrogen [VFr/PPres] Airway adaptor --at end expiration
Other
Nitrogen [VFr/PPres] Airway adaptor --during expiration