Fetal blood [Volume] in Blood by Flow cytometry (FC) 75308-7
LOINC Code
| LOINC code | 75308-7 | ||
|---|---|---|---|
| name | Fetal blood [Volume] in Blood by Flow cytometry (FC) | ||
| description | Measures the volume of fetal blood in the maternal circulation as calculated from the flow cytometry fetal cell count. Fetal maternal hemorrhage (FMH) is the transfer of fetal blood to the maternal circulation. For Rh negative mothers this may cause anti-D sensitization that can result in hemolytic disease of the newborn (HDN) in subsequent pregnancies. Anti-D immunoglobulin can be given to prevent sensitization. Quantification of the volume of FMH can aid in the calculation of the dose of anti-D immunoglobulin needed to prevent sensitization. Flow cytometry can measure presence of fetal red cells in the mother's blood sample using either fetal hemoglobin (HbF) or D positive antigens on the fetal cells. Glycophorin A (CD235a) may also be included in the method. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Fetal blood | ||
| property | Vol = Volume | ||
| time | Pt = 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 | Bld = Whole blood | ||
| scale | Qn = 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 | ||
| method | Flow cytometry | ||
Additional Names | |||
| short name | Fetal blood Vol Bld FC | ||
Basic Attributes | |||
| class | HEM/BC | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
| formula (readable) | Volume of fetal bleed (mls) = % fetal cells by flow cytometry x 18 x 1.22 | ||
| example UCUM units | mL 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 unit | mL | ||
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. | |||
History/Usage | |||
| first released | |||
| last updated | 2.50 | ||
| last change type | MIN - change to field other than name | ||
Related Names | |||
| |||
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.
Thank you for choosing Find-A-Code, please Sign In to remove ads.
Quick, Current, Complete - www.findacode.com