Version 2.78

Fully-Specified Name

Component
Central apnea hypopnea index
Property
NRat
Time
Stdy
System
^Patient
Scale
Qn
Method

Additional Names

Short Name
Central apnea hypopnea index nRate

Basic Attributes

Class
PULM
Type
Clinical
First Released
Version 2.65
Last Updated
Version 2.65
Order vs. Observation
Observation

Formula (Readable)

Central apnea hypopnea index (CAHI) = (number of central apneas [LOINC: 90553-9] + number of central hypopneas [LOINC: 90558-8]) x 60 / total sleep time (TST, in minutes)

Member of these Panels

LOINC Long Common Name
90568-7 Polysomnography panel

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Índice de apnea-hipopnea central:NRat:Estudio:^ Paciente:Cuantitativo:
it-IT Italian (Italy) Apnea ipopnea centrale, indice:NRat:Studio:^Paziente:Qn:
Synonyms: Apnea + ipopnea Gestione ventilazione polmonare Indice apnea ipopnea Indice di apnea-ipopnea centrale Indice di ipopnea Indice numerico paziente
zh-CN Chinese (China) 中枢性呼吸暂停低通气指数:计数型速率:检查过程持续时间:^患者:定量型:
Synonyms: 中枢性窒息低通气指数;中枢性窒息症低通气指数;中枢性（中枢神经性）呼吸暂停（窒息、窒息症）低通气（呼吸减弱、呼吸不足）指数 中枢神经性呼吸暂停;中枢性窒息;中枢性窒息症 医疗服务对象;客户;病人;病患;病号;超系统 - 病人 单位时间内的数量或计数;数量/时间;数量型速率;数量型速率或计数型速率;数量型速率或计数型速率(单位时间);数量或计数型速率;计数/时间;计数型速率(单位时间);数量或计数型速率(单位时间) 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 呼吸减弱;呼吸不足 呼吸减弱指数;呼吸不足指数 呼吸暂停（窒息、窒息症）+低通气（呼吸减弱、呼吸不足） 检查;检查持续时间;检查过程 肺部测量指标与呼吸机管理

Example Units

Unit Source
/h Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=90564-6