• j:TestType (e.g. em:LaboratoryTest)

• Nothing

Can be replaced with:

• em:TestAugmentation
      Additional information about a test.

• j:BiologicTest (of j:BiologicTestType)
      A test administered to identify, quantify or describe biologic material from a person's system/body.
• j:DNATest (of j:DNATestType)
      A test of biologic material administered to identify or describe the contained genetic code, includes materials resulting in non-coding DNA or "Junk DNA" results.
• j:DrugTest (of j:DrugTestType)
      A test to determine a subject current or recent drug use.
• j:DrugUseAssessmentDrugTest (of j:DrugTestType)
      A drug test used as part of an assessment.
• em:LaboratoryTest (of j:TestType)
      A lab test.
• j:SubstanceTest (of j:BiologicTestType)
      A test administered to identify/quantify substances, e.g., drug, alcohol, etc., in a person's system/body.

• Nothing