Category
SPECIAL CHEMISTRY.
Sub Category
ENDOCRINE.
Synonyms/Aliases
PARATHORMONE.
Abbreviations
PTH.
Type
INDIVIDUAL TEST
3 Days
RESULTS READY/ REPORTED IN 3 WORKING DAYS.
Method
IMMUNOASSAY.
Temp
REFRIGERATED OR FROZEN. LABILE ANALYTE AT ROOM TEMPERATURE OR IF DELAYED SEPARATION OF SERUM OCCURS.
Setup
BATCHED.
Components Parameters
NOT APPLICABLE.
PRE-ANALYTIC CONSIDERATIONS
Test Ordering Instructions
FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.
Patient preparation
N/A
Sample type
EDTA PLASMA (PREFERRED) OR SERUM.
Container/ preservative
EDTA (PURPLE TOP) VACUTAINER. SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER.
Sample volume
AT LEAST 1-2ML SERUM OR EDTA PLASMA.
Rejection criteria
LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE.
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.
Reference intervals
AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT.
Clinical Utility
DIAGNOSIS OF HYPOPARATHYROIDISM & HYPERPARATHYROIDISM; EVALUATION OF RENAL DIALYSIS PATIENTS, HYPOCALCEMIA & HYPERCALCEMIA.
Test Limitations/ Confounders
IMMUNOASSAY INTERFERENCE CAN GIVE RISE TO SPURIOUS RESULTS. SUCH INTERFERENCE CAN ARISE FROM PRESENCE OF HETEROPHILE ANTIBODIES, ANTI-ANIMAL ANTIBODIES, AUTOANTIBODIES, PARAPROTEINS, BIOTIN ETC. RESULTS SHOULD ALWAYS BE CORRELATED WITH CLINICAL FINDINGS.