LOINC Code 75222-0: Microscopic observation Alberts stain Nom (Throat)

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 Observation. It is commonly used with the system or sample type Thrt.

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: Alberts stain

What it does not mean

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

Key facts

• Microscopic observation [Identifier] in Throat by Alberts stain
• Observation
• A microscopic exam of a smear from a throat swab for suspected diphtheria. Albert's stain demonstrates the metachromatic granules in the Corynebacterium diphtheriae bacillus. The C. diphtheriae bacillus stains green and the granules stain bluish black. These granules are also called volutin bodies, Babe-Ernst granules, or polar bodies. Albert's stain can be used for the presumptive diagnosis of diphtheria. Albert's staining demonstrates the metachromatic granules in club-shaped C. diphtheriae bacilli, often arranged in Chinese character-like formations. Albert's technique can also stain non-pathogenic Corynebacterium species (diphtheroids) in the throat, thus a positive Albert's smear should only be considered a presumptive diagnosis diphtheria.
• ID; Identity or presence; Infectious Disease; InfectiousDisease; Microbiology; Nominal; Point in time; Random; St; Stains; Stn; Throat; Upper respiratory

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