Medical Tests
Explore lab tests, blood work, and imaging exams with plain-language preparation and overview pages.
Browse Directory Sections
Tests starting with L (4,204)
Other
Level of consciousness [NIH Stroke Scale]
Other
Level of deformity correction
Other
Level of difficulty doing usual activities because of double images when not wearing corrective lenses in past 7 days
Other
Level of difficulty doing usual activities because of double images when wearing best corrective lenses in past 7 days
Other
Level of difficulty doing usual activities because of glare when not wearing corrective lenses in past 7 days
Other
Level of difficulty doing usual activities because of glare when wearing best corrective lenses in past 7 days
Other
Level of difficulty doing usual activities because of halos when not wearing corrective lenses in past 7 days
Other
Level of difficulty doing usual activities because of halos when wearing best corrective lenses in past 7 days
Other
Level of difficulty doing usual activities because of starbursts when not wearing corrective lenses in past 7 days
Other
Level of difficulty doing usual activities because of starbursts when wearing best corrective lenses in past 7 days
Other
Level of difficulty finding affordable child care while school is suspended or canceled
Other
Level of difficulty getting used to the dark when moving from a lighted area into a dark place
Other
Level of difficulty judging distances
Other
Level of difficulty seeing because of changes in vision clarity during the course of the day
Other
Level of difficulty seeing objects off to the side
Other
Level of difficulty when driving at night because of vision
Other
Level of difficulty with daily activities because of vision
Blood test
Level of evidence
Other
Level of exertion information panel
Other
Level of fatigue on average over the past month [Reported]
Other
Level of help
Other
Level of independence
Other
Level of motion preserving spine stablization
Other
Level of paid and unpaid caregiver assistance [CMS Assessment]
Other
Level of paid caregiver assistance in the past month [CMS Assessment]
Other
Level of responsiveness
Other
Level of rigid spine stabilization
Other
Level of spine decompression
Other
Level of spine fusion
Other
Level of spine intervention
Other
Level of spine surgery measures
Other
Level of tumor invasion [Type] in Colorectal cancer specimen by Haggitt
Other
Level of tumor invasion in Skin melanoma Qualitative by Clark
Other
Level of understanding risk and benefit of LASIK before treatment
Other
Level of unpaid caregiver assistance in the past month [CMS Assessment]
Other
Level of worry that asset value has been or will be negatively impacted by COVID-19
Other
Level of worry that household income has been or will be negatively impacted by COVID-19
Other
Level that eye problems affected ability to do regular daily activities, other than work at a job in past 7 days
Other
Level that eye problems affected productivity while working in past 7 days
Other
Levoamphetamine/Amphetamines.total in Urine
Blood test
Levodopa [Mass/volume] in Serum or Plasma
Blood test
Levodopa [Measurement] in Serum or Plasma
Other
Levodopa [Moles/volume] in Cerebral spinal fluid
Blood test
Levodopa [Moles/volume] in Serum or Plasma
Blood test
Levodopa [Presence] in Serum or Plasma
Blood test
Levodopa induced platelet IgG Ab [Presence] in Serum or Plasma by Flow cytometry (FC)
Blood test
Levodopa induced platelet IgM Ab [Presence] in Serum or Plasma by Flow cytometry (FC)
Other
Levodopa.PO [Mass] of Dose
Other
Levodopa/Creatinine [Molar ratio] in Urine
Blood test
Levodopa/Tyrosine [Molar ratio] in Serum or Plasma
Other
Levomethamphetamine [Mass/volume] in Urine
Other
Levomethamphetamine [Mass/volume] in Urine by Confirmatory method
Other
Levomethamphetamine [Measurement] in Urine
Other
Levomethamphetamine [Presence] in Urine by Confirmatory method
Other
Levomethamphetamine [Presence] in Urine by Screen method
Other
Levomethamphetamine cutoff [Mass/volume] in Urine for Confirmatory method
Other
Levomethamphetamine cutoff [Mass/volume] in Urine for Screen method
Other
Levomethamphetamine/Amphetamines.total in Urine
Other
Levorphanol [Mass/time] in 24 hour Urine
Blood test
Levorphanol [Mass/volume] in Serum or Plasma
Other
Levorphanol [Mass/volume] in Urine
Other
Levorphanol [Mass/volume] in Urine by Confirmatory method
Other
Levorphanol [Mass] of Dose
Other
Levorphanol [Measurement] in Urine
Other
Levorphanol [Presence] in Urine
Other
Levorphanol [Presence] in Urine by Confirmatory method
Other
Levorphanol [Presence] in Urine by Screen method
Other
Levorphanol cutoff [Mass/volume] in Urine for Confirmatory method
Other
Levorphanol cutoff [Mass/volume] in Urine for Screen method
Blood test
Levothyroxine IgE Ab [Units/volume] in Serum
Blood test
Levothyroxine absorption in Serum or Plasma by calculation
Blood test
Levothyroxine absorption panel - Serum or Plasma
Blood test
Levulinate [Moles/volume] in Serum or Plasma
Other
Levulinate/Creatinine [Molar ratio] in Urine
Other
Licensed nursing personnel [#] by age range [NMMDS]
Other
Licensed nursing personnel [#] by employment position [NMMDS]
Other
Licensed nursing personnel [#] by employment specialty [NMMDS]
Other
Licensed nursing personnel [#] by entry level nursing degree [NMMDS]
Other
Licensed nursing personnel [#] by highest level of education in a non-nursing degree [NMMDS]
Other
Licensed nursing personnel [#] by highest level of education in a nursing degree [NMMDS]
Other
Licensed nursing personnel [#] by nursing certification [NMMDS]
Other
Licensed nursing personnel [#] by primary nursing license type [NMMDS]
Other
Licensed nursing personnel [#] by race or ethnicity [NMMDS]
Other
Licensed nursing personnel [#] by sex [NMMDS]
Other
Licensed nursing staff # [NMMDS]
Other
Licensed nursing staff [NMMDS]
Other
Licensed nursing staff and sex panel [NMMDS]
Other
Licensed nursing staff by employment position/Licensed nursing staff [NMMDS]
Other
Licensed nursing staff.age range/Licensed nursing staff [NMMDS]
Other
Licensed nursing staff.entry level nursing degree/Licensed nursing staff [NMMDS]
Other
Licensed nursing staff.highest level of education in a non-nursing degree/Licensed nursing staff [NMMDS]
Other
Licensed nursing staff.highest level of education in a nursing degree/Licensed nursing staff [NMMDS]
Other
Licensed nursing staff.nursing certification/Licensed nursing staff [NMMDS]
Other
Licensed nursing staff.primary nursing license type/Licensed nursing staff [NMMDS]
Other
Licensed nursing staff.race or ethnicity/Licensed nursing staff [NMMDS]
Other
Licensed nursing staff.sex/Licensed nursing staff [NMMDS]
Other
Licensed practical nurse Long term care facility Note
Other
Licensed practical nurse Note
Other
Licensed practical nurse Outpatient Note
Other
Licensing received [NMMDS]