Gestational age estimated from Outer-Outer Biparietal diameter on US by Chitty 1997 method   33087-8

LOINC Code


LOINC code33087-8
nameGestational age estimated from Outer-Outer Biparietal diameter on US by Chitty 1997 method
statusACTIVE

Fully-Specified Name

componentGestational age
propertyTime  =  Time Duration
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
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
methodUS+Estimated from O-O BPD.Chitty 1997

Additional Names

short nameGA from O-O BPD.Chitty 1997

Basic Attributes

classOB.US
type2  Clinical
order vs. observationObservation
formula (readable)Gestational age from Biparietal Diameter: GA = EXP (0.044653*BPD-0.0060089*BPD * ln (BPD) +1.961)SD: ± 0.0002577* BPD+0.03061Derived output: 12-39 weeks Published input: BPD 22-91 mm
example UCUM unitsd
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unitdays

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

Member of these Groups

LG50112-8Gestational ageTime^Fetus

History/Usage

first released
last updated2.70
last change typeMIN  - change to field other than name

Related Names

97
Biparietal diameter
BPD-OO
Echography
Est
estimation
Fetal
GA
Gest
Gestation
Gyn
Gynecology
OB
ObGyn
OBSTERICAL
OBSTERICAL.ULTRASOUND
Obstetrical
Obstetrics
Outer to Outer Biparietal Diameter
Point in time
predicted
Prenatal
QNT
Quan
Quant
Quantitative
Random
Sonogram
Sonograph
Sonography
ULS
Ultrasound

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, 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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