LOINC Code 1380-5: Calcium/Phosphate parathyroid-challenge test (S) [Mass ratio]

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 Calcium/Phosphate parathyroid-challenge test. It is commonly used with the system or sample type Ser.

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: Observation

What it does not mean

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

Key facts

• Calcium/Phosphate parathyroid-challenge test [Mass Ratio] in Serum
• Calcium/Phosphate parathyroid-challenge test
• Ca; Ca Phos; Cal; CAP; CHEMISTRY.CHALLENGE TESTING; i Phos; Inorganic phosphate; Mass concentration ratio; Mass ratio; MCRto; Phos; Phos PTH Chall; Phosphate total; Phosphorous; Phosphorus; Phosphrous; Pi; PO4; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; 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