LOINC Code 75308-7: Fetal blood FC (Bld) [Vol]

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Fetal blood. It is commonly used with the system or sample type Bld.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Both
• Method: Flow cytometry

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Fetal blood [Volume] in Blood by Flow cytometry (FC)
• Fetal blood
• 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.
• Blood; Dynamic; FC; Fetomaternal hemorrhage; FMH; HEMATOLOGY/CELL COUNTS; Point in time; QNT; Quan; Quant; Quantitative; Random; Volume; WB; Whole blood

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions