LOINC
Version 2.72

88622-6Cytomegalovirus [Presence] in Ocular fluid by Shell vial cultureActive

Part Descriptions

LP14255-1   Cytomegalovirus
Cytomegalovirus is a member of the family Herpesviridae and also known as Human Herpesvirus-5 (HHV-5). It contains a linear double-stranded DNA encased in an icosahedral capsid that is surrounded by a viral envelope. It replicates slowly and may take weeks for the infection to become visible microscopically. Its life cycle includes a lytic and a latent phase. During the lytic phase the cytoskeleton of the infected cell is disrupted and becomes very large. The enlarged cell eludes detection by natural killer (NK) cells by encoding UL16. UL16 is a protein that binds to the ligand NDG2D which is a surface receptor on NK cells and, when blocked, prevents the CMV infected cell from apoptotic signaling to NK cells to destroy it.[https://pedclerk.bsd.uchicago.edu/page/cytomegalovirus-cmv] In the US one in three children are infected by CMV by the age of five and over half of adults are infected by age 40. Infection with CMV is mostly asymptomatic. Symptoms when present include fever, sore throat, fatigue, swollen glands. CMV can occasionally lead to mononucleosis or hepatitis. Immunocompromised patients experience much more acute symptoms that can affect the eyes, lungs, liver, esophagus, stomach, and intestines. For babies born with CMV, involvement with the brain, spleen, lung, liver can occur. In addition, there may be growth problems and hearing loss which is the most common symptom in congenital CMV infection. CMV is transmitted in urine, saliva, blood, tears, semen and breast milk by direct contact. Normally no treatment is necessary, but for severe cases medication is available.[https://www.cdc.gov/cmv/overview.html] Source: Regenstrief LOINC

LP7448-6   Ocular fld
The "Ocular fld" System in LOINC encompasses aqueous humor and vitreous humor. Aqueous humor is found in the anterior and posterior chambers of the eye, both of which are located anterior to the lens. Vitreous humor is found in the vitreous chamber, which is located between the lens and the retina. This System is used for LOINC terms that represent tests run on either aqueous or vitreous fluid; it does not imply that both types of fluid are tested in any given instance. Source: Regenstrief LOINC

LP36602-8   Shell vial culture
Virus culture is often more sensitive than trying to detect viruses directly in clinical samples. Shell vial culture is a modification of the conventional cell culture technique for rapid detection of viruses in vitro. The technique involves inoculation of the clinical specimen on to cell monolayer grown on a cover slip in a shell vial culture tube, followed by low speed centrifugation and incubation. This system works on the principle that the low speed centrifugation enhances viral infectivity to the susceptible cells. It is thought that the minor trauma to the cell surface produced as a result of low speed centrifugation mechanical force enhances the viral entry in to the cells, which in turn reduces the total time taken for the virus to produce infection of cells. Virus may be detected by direct fluorescent antibody (DFA) or indirect fluorescent antibody (IFA) staining within hours or days of inoculation. Source: Regenstrief LOINC

Fully-Specified Name

Component
Cytomegalovirus
Property
PrThr
Time
Pt
System
Ocular fld
Scale
Ord
Method
Shell vial culture

Additional Names

Short Name
CMV Ocflu Ql Shell Vial Cult
Display Name
CMV Shell vial culture Ql (Ocular fluid)
Consumer Name Alpha
Cytomegalovirus (CMV) culture, Eye fluid

Example Answer List LL744-4

Source: Regenstrief Institute

Answer Code Score Answer ID
Detected LA11882-0
Not detected LA11883-8

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.64
Last Updated
Version 2.64
Order vs. Observation
Both

Member of these Groups

LG50929-5 Cytomegalovirus|PrThr|Sys:ANYEYE

Language Variants Get Info

zh-CNChinese (China)
巨细胞病毒:存在情况或阈值:时间点:眼液:序数型:细胞培养瓶培养法
nl-NLDutch (Netherlands)
Cytomegalovirus:aanwezigheid:moment:oogvocht:ordinaal:Shell vial'-kweek
fr-BEFrench (Belgium)
Cytomégalovirus:PrThr:Temps ponctuel:Liquide oculaire:Ordinal:Culture sur lame en flacon
fr-CAFrench (Canada)
Cytomégalovirus:Présence-Seuil:Temps ponctuel:Liquide oculaire:Ordinal:Culture sur lame en flacon
fr-FRFrench (France)
Cytomégalovirus:Présence/Seuil:Ponctuel:Liquide oculaire:Qualitatif:Culture fiole de coquille
it-ITItalian (Italy)
Citomegalovirus:PrThr:Pt:Liquido oculare:Ord:Shell vial, coltura
es-MXSpanish (Mexico)
Citomegalovirus:Presencia o umbral:Punto temporal:Fluido ocular:Ordinal:Cultivo de viales de concha
es-ESSpanish (Spain)
Citomegalovirus:PrThr:Punto temporal:Fluido ocular:Ord:Cultivos en "shell vial"

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=88622-6