LOINC Code 70293-6: E. histolytica+E. dispar+E. ecuadoriensis+E. nuttalli DNA NAA+probe Ql (Specimen)

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Entamoeba histolytica+Entamoeba dispar+Entamoeba ecuadoriensis+Entamoeba nuttalli DNA. It is commonly used with the system or sample type XXX.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Both
• Method: Probe.amp.tar

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Entamoeba histolytica+Entamoeba dispar+Entamoeba ecuadoriensis+Entamoeba nuttalli DNA [Presence] in Specimen by NAA with probe detection
• Entamoeba histolytica+Entamoeba dispar+Entamoeba ecuadoriensis+Entamoeba nuttalli DNA
• This code describes molecular detection of Entamoeba histolytica/dispar complex (E. histolytica, E. dispar, E. nuttalli, and E ecuadoriensis) DNA by RT-PCR. It targets a sequence of the DNA coding for the 15S ribosomal RNA that is common to these four species. So a positive result indicates whether any one of these species is present without specifying which one. In the submitter's laboratory, it is used only on human specimens, mostly stool but pus and tissue as well. E. dispar is a commensal in the human digestive tract, and E. histolytica is the only one thought to be pathogenic in humans. The other two species are found in animals and not thought to inhabit the human gut. A positive can be followed up in the submitter's lab by specific identification of the species using DNA sequencing (see LOINC 70294-4). Additional species that have been found in the gut include Entamoeba moshkovskii, Entamoeba poleki, Entamoeba coli, and Entamoeba hartmanni. E. histolytica, E. dispar, and E.moshkovskii are morphologically identical but are different biochemically and genetically.
• 3 Self-Sustaining Sequence Replication; 3SR SR; Ameba; Amebiasis; Amebic; Amoeba; Amplif; Amplification; Amplified; Deoxyribonucleic acid; DNA NUCLEIC ACID PROBE; DNA probe; E dispar; E his+dis+ecua+nutt; E histolyt; E histolytica; E histolytica dispar complex; Entamoeba histolytica dispar complex; Entamoeba histolytica/dispar complex; ID; Infectious Disease; InfectiousDisease; LAT; LCR; Ligase chain reaction; Ligation-activated transcription; Microbiology; Misc; Miscellaneous; NAA+probe; NAAT; NASBA; Nucleic acid sequence based analysis; Ordinal; Other; PCR; Point in time; Polymerase chain reaction; PR; Probe amp; Probe with ampification; Probe with target amplification; QBR; QL; Qual; Qualitative; Random; Screen; SDA; Spec; Strand Displacement Amplification; TMA; To be specified in another part of the message; Transcription mediated amplification; Unspecified

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions