Parathyroid Hormone Intact with Minerals

Abbrev Code:PHM   
Order Code:LAB1036Order Name:Parathyroid Hormone Intact with Minerals
Synonyms:LHE LAB813; PTHI with Calcium, Phosphorus, Creatinine and eGRF
Methodology:Refer to individual tests.
CPT Codes: 83970 x1, 83970 x1, 82310 x1, 82310 x1, 84100 x1, 84100 x1, 82565 x1, 82565 x1, x
Test Includes:Parathormone Intact, Creatinine, eGFR, Calcium, Phosphorus
Turnaround Time:Performed and reported 24 hours/day.

Collection Instructions

Optimal Volume:3 mL
Minimum\Peds Volume:1 mL
Container:Green (lithium heparin, gel)
Alternate Containers: Green (lithium heparin, no gel), Red (no gel), Red or gold (gel)
Causes for Rejection:Moderate hemolysis; frozen plasma, whole blood EDTA not processed within 24 hours. Sample collected in pediatric EDTA MAP tube.
Contraindications:Large doses of biotin (10 mg or more per day) may cause clinically significant interference in PTHI levels. If interference is suspected, it is strongly recommended that biotin is discontinued for at least one week prior to retesting.

Processing and Shipping

Specimen Processing:Process within 24 hours, 2 hours preferred. Centrifuge and aliquot 1.5 mL, 0.4 mL minimum.  Store plasma refrigerated; do not freeze. Serum is not recommended, but accepted if separated from cells within 2 hours of collection and assayed within 8 hours of collection or frozen. See Stability,
Shipping Instructions:Ship plasma at refrigerated temperature to arrive within 72 hours of collection for lithium heparin plasma. Ship serum on dry ice.
Stability:Lithium heparin plasma: 9 hours at room temperature; 72 hours refrigerated. Do not freeze.
Serum: 8 hours at room temperature or refrigerated; 1 month frozen.
Test Performed at or Referral Lab Chemistry  (Roche-UMMC East)


Reference Range:Refer to individual tests.
Use:Used for evaluation of hypercalcemia.

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