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)
Blood test
Natriuretic peptide.B prohormone N-Terminal [Moles/volume] in Serum or Plasma
Blood test
Natriuretic peptide.B prohormone N-Terminal [Moles/volume] in Serum or Plasma by Immunoassay
Other
Natural and feet together and tandem stance assessment
Other
Natural cannabinoids panel - Urine
Other
Natural color of Hair
Blood test
Natural killer and natural killer T cell subsets panel - Blood
Other
Natural killer cell cytotoxicity panel - Blood mononuclear cells
Other
Natural killer cell cytotoxicity.0.9:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.1.88:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.100:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.12.5:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.15:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.25:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.3.13:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.3.75:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.30:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.50:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.6.25:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.7.5:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.IL-2 stimulated 30:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.IL-2 stimulated panel - Blood mononuclear cells by Flow cytometry (FC)
Other
Natural killer cell cytotoxicity.IL-stimulated 0.9:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.IL-stimulated 1.88:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.IL-stimulated 15:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.IL-stimulated 3.75:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Other
Natural killer cell cytotoxicity.IL-stimulated 7.5:1 effector to target cell ratio/Positive control in Blood mononuclear cells
Blood test
Natural killer cell function [Units/volume] in Blood
Blood test
Natural killer cell panel - Blood by Flow cytometry (FC)
Other
Natural parent [PhenX]
Other
Nature of health problem Narrative [PhenX]
Other
Nausea
Other
Nausea [CCC]
Other
Nausea [HIV-SSC]
Other
Nausea [Presence]
Other
Nauseous or had stomach problems when I thought about or was exposed to information about the coronavirus in past 2 weeks
Other
Nautical catchment area Population [Estimated]
Other
Near acuity [RFC]
Other
Near convergence blur by Phoropter
Other
Near convergence break by Phoropter
Other
Near convergence recovery by Phoropter
Other
Near death thoughts and feelings to be shared Narrative - Reported
Other
Near divergence blur by Phoropter
Other
Near divergence break by Phoropter
Other
Near divergence recovery by Phoropter
Other
Near fields or orchards [PEG]
Other
Near infravergence break by Phoropter
Other
Near infravergence recovery by Phoropter
Other
Near supravergence break by Phoropter
Other
Near supravergence recovery by Phoropter
Other
Neck Disability Index [NDI]
Other
Neck, shoulders, hips movement
Blood test
Necroinflammatory activity grade
Blood test
Necroinflammatory activity interpretation in Serum Qualitative
Blood test
Necroinflammatory activity score
Blood test
Necrotizing myopathy autoimmune Ab panel - Serum
Blood test
Nectarine IgE Ab [Presence] in Serum by Radioallergosorbent test (RAST)
Blood test
Nectarine IgE Ab [Units/volume] in Serum
Blood test
Nectarine IgG Ab [Mass/volume] in Serum
Blood test
Nectarine IgG Ab [Units/volume] in Serum
Blood test
Nectarine IgG Ab [Units/volume] in Serum or Plasma by Immunoassay
Blood test
Nectarine IgG4 Ab [Mass/volume] in Serum
Other
Nectin-4 [Interpretation] in Tissue by Immunohistochemical Narrative
Other
Need for and availability of Continuous Positive Airway Pressure device during assessment period [CMS Assessment]
Other
Need for and availability of a bed rail during assessment period [CMS Assessment]
Other
Need for and availability of a cane/crutch during assessment period [CMS Assessment]
Other
Need for and availability of a communication device during assessment period [CMS Assessment]
Other
Need for and availability of a glucometer during assessment period [CMS Assessment]
Other
Need for and availability of a hearing aid during assessment period [CMS Assessment]
Other
Need for and availability of a lift chair during assessment period [CMS Assessment]
Other
Need for and availability of a limb prosthesis during assessment period [CMS Assessment]
Other
Need for and availability of a manual wheelchair during assessment period [CMS Assessment]
Other
Need for and availability of a mechanical lift during assessment period [CMS Assessment]
Other
Need for and availability of a motorized wheelchair/scooter during assessment period [CMS Assessment]
Other
Need for and availability of a raised toilet seat during assessment period [CMS Assessment]
Other
Need for and availability of a reacher/grabber during assessment period [CMS Assessment]
Other
Need for and availability of a shower/commode chair during assessment period [CMS Assessment]
Other
Need for and availability of a sock aid during assessment period [CMS Assessment]
Other
Need for and availability of a specialized seating pad during assessment period [CMS Assessment]
Other
Need for and availability of a standard folding walker during assessment period [CMS Assessment]
Other
Need for and availability of a transfer board during assessment period [CMS Assessment]
Other
Need for and availability of a walk/wheel-in shower during assessment period [CMS Assessment]
Other
Need for and availability of a walker during assessment period [CMS Assessment]
Other
Need for and availability of a walker with seat during assessment period [CMS Assessment]
Other
Need for and availability of a walker with wheels during assessment period [CMS Assessment]
Other
Need for and availability of a wheelchair during assessment period [CMS Assessment]
Other
Need for and availability of an electronic bed during assessment period [CMS Assessment]
Other
Need for and availability of an orthotic/brace during assessment period [CMS Assessment]
Other
Need for and availability of an oxygen concentrator during assessment period [CMS Assessment]
Other
Need for and availability of glasses or contact lenses during assessment period [CMS Assessment]
Other
Need for and availability of grab bars during assessment period [CMS Assessment]
Other
Need for and availability of other assistive devices during assessment period [CMS Assessment]
Other
Need for and availability of ramps during assessment period [CMS Assessment]
Other
Need for and availability of stair rails during assessment period [CMS Assessment]
Other
Need help getting out of bed, showered, or dressed
Other
Need help getting to essential places
Other
Need help letting go [Living with HIV]
Other
Need help to make sure bills get paid
Other
Need help to make sure there is enough food, medicines or any other things needed in house
Other
Need help with house cleaning or yard work
Other
Need help with household things such as cook meals, help feed, or provide correct medicines each day