LOINC Code 77367-1: Cholinesterase Dibucaine Calc [Catalytic activity/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 Cholinesterase^dibucaine. It is commonly used with the system or sample type Ser/Plas.

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: Calculated

What it does not mean

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

Key facts

• Cholinesterase [Enzymatic activity/volume] in Serum or Plasma by calculation --Dibucaine
• Cholinesterase^dibucaine
• People with genetic variants or acquired deficiencies of plasma cholinesterase that result in lower enzymatic activity can have a very difficult time recovering from surgery. To identify these patients, tests using various inhibitory agents are performed. The most common inhibitors are fluoride and dibucaine. The degree to which the agent inhibits the enzyme (fluoride number or dibucaine number) can be used to predict neuromuscular recovery after surgery. Other inhibitors include chloride, RO 020683, and scoline. This term was created for, but not limited in use to, the Roche cobas Cholinesterase / Dibucaine Gen.2 test kit.
• Acylcholine acylhydrolase; BChE; Benzoyl cholinesterase; Benzoylcholinesterase; Butyrylcholine esterase; Calc; Calculation; Catalytic Concentration; Che; Chemistry; Chincocaine; Choline esterase II; CHS; Nupercainal; Pl; Plasma; Plsm; Point in time; Pseudocho; Pseudocholinesterase; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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