11633-5

LOINC Code


LOINC code11633-5
name
descriptionHeart rates are considered reactive ("normal") if two or more accelerations occur within a 20-minute period. Nonreactive heart rate is one in which not enough accelerations are detected in a 40-minute period and can be associated with several findings, including the fetus was asleep during the test in which case the test time may be extended. Nonreactive results can also occur if the mother is taking certain medications or that the fetus is not getting enough oxygen.[https://www.acog.org/]
statusACTIVE

Fully-Specified Name

componentHeart rate reactivity
propertyFcn  =  Function
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
system^Fetus
scaleOrd  =  Ordinal:  Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive.
methodUS

Additional Names

short nameBiophysical profile; Echography; Fetal; Function; Gyn; Gynecology; Heart beat; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Ordinal; Point in time; Pulse; QL; Qual; Qualitative; Random; Screen; Sonogram; Sonograph; Sonography; UL

Basic Attributes

classOB.US
type2  Clinical
order vs. observationFetal NST by US

Member of these Panels

48770-2

History/Usage

first released
last updated2.71
last change typeNAM  - change to Analyte/Component

Related Names



Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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