Category
SPECIAL CHEMISTRY.
Sub Category
ENDOCRINE
Synonyms/Aliases
-N/A
Abbreviations
-N/A
Type
INDIVIDUAL TEST
Results
RESULTS READY/ REPORTED IN 7 WORKING DAYS
Method
IMMUNOASSAY.
Temp
FROZEN (-20°C). SAMPLES ARE ROOM TEMPERATURE ARE NOT ACCEPTABLE
Setup
BATCHED.
Components Parameters
NOT APPLICABLE
PRE-ANALYTIC CONSIDERATIONS
Test Ordering Instructions
FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.
Patient preparation
12 -14 HOURS FASTING REQUIRED. FASTING MEANS THAT ONLY WATER & PRESCRIBED MEDICATION IF ANY ARE TAKEN. SHOULD BE OFF DRUGS THAT INHIBIT ACID PRODUCTION (ANTACIDS, PROTON PUMP INHIBITORS, ETC.) FOR AT LEAST 24 HOURS PRIOR IF APPLICABLE.
Sample type
SERUM.
Container/ preservative
SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER.
Sample volume
AT LEAST 2ML
Rejection criteria
LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE.NONFASTING SAMPLES.
Other Instructions
CENTRIFUGE SST (SERUM GEL TUBES) WITHIN 1-2 HOURS OF COLLECTION. CENTRIFUGE RED TOP VACUTAINERS AND ALIQUOT SERUM WITHIN 1-2 HOURS OF COLLECTION. THE SEPARATION VIAL MUST BE LABELED WITH AT LEAST 2 PATIENT IDENTIFIERS AND THE SAMPLE TYPE. PROMPTLY FREEZE THE ALIQUOT.
Reference intervals
AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT.
Clinical Utility
DIAGNOSE GASTRIN PRODUCING TUMORS (GASTRINOMAS, ZOLLINGER ELLISON SYNDROME).
Test Limitations/ Confounders
PROTON PUMP INHIBITORS, H2 BLOCKERS INCREASE GASTRIN LEVELS. INCREASED LEVELS OCCUR IN PERNICIOUS ANEMIA, CHRONIC ATROPHIC GASTRITIS.