LOINC Code 32631-4: Nitroblue Tetrazolium Test (NBT) Ql (Bld)

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 Nitroblue tetrazolium test. 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

What it does not mean

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

Key facts

• Nitroblue Tetrazolium Test (NBT) [Presence] in Blood
• Nitroblue tetrazolium test
• Test that measures ability of certain cells in the immune system to convert colorless nitroblue tetrzolium to a deep blue color.
• Blood; HEMATOLOGY/CELL COUNTS; NBT; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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