77667-4
LaboratoryCalcitonin [Moles/volume] in Serum or Plasma --2 minutes post XXX challenge
Definition
Calcitonin is a sensitive tumor marker of medullary thyroid carcinoma (MTC). Patients with MTC have usually very high levels of serum calcitonin that can be used to diagnose the disease. To improve diagnostic sensitivity in family members with small MTCs, or to evaluate postoperative biochemical cure status, measurement of calcitonin stimulated with combined intravenous calcium gluconate and pentagastrin (calcitonin challenge) has been widely adopted. [PMID: 21358115]
LOINC 6-Axis Classification
Component
Calcitonin^2M post XXX challenge
Property
SCnc
Time Aspect
Pt
System
Ser/Plas
Scale Type
Qn
Method Type
N/A
Details
Class
CHAL
Order/Observation
Observation
Short Name
Calcit 2M p chal SerPl-sCnc
Display Name
Calcitonin 2 Min post Unsp challenge [Moles/Vol]
Related Names
Frequently Asked Questions
What is LOINC code 77667-4?
LOINC code 77667-4 identifies "Calcitonin [Moles/volume] in Serum or Plasma --2 minutes post XXX challenge". Calcitonin is a sensitive tumor marker of medullary thyroid carcinoma (MTC). Patients with MTC have usually very high levels of serum calcitonin that can be used to diagnose the disease. To improve diagnostic sensitivity in family members with small MTCs, or to evaluate postoperative biochemical cure status, measurement of calcitonin stimulated with combined intravenous calcium gluconate and pentagastrin (calcitonin challenge) has been widely adopted. [PMID: 21358115]
What does 77667-4 measure?
This code measures Calcitonin^2M post XXX challenge in Ser/Plas. It belongs to the CHAL class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.