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Laboratory Test Directory

HCG Beta Subunit, Quantitative, Pregnancy Assessment Only


Name Method Department Units
Quant Beta HCG Microparticle enzyme immunoassay (MEIA)
Core Lab, Endocrinology mIU/mL

Specimen Requirements

Serum Spun, Plasma Spun

Container Type Container Size Specimen Volume

Green tube (Lithium heparin), with Gel

3 mL 1 mL

Green tube (Lithium heparin), No Gel

3 mL 1 mL

Gold tube, (SST) with Gel

3.5 mL 1 mL

Green tube (Sodium heparin), No Gel

3 mL 1 mL

Red Tube (no anticoagulant) with Gel

3 mL 1 mL

Red tube, (no anticoagulant), No Gel

3 mL 1 mL

Frozen - 12 month(s)
Refrigerated - 7 day(s)

Specimen Preparation

  • Collect by venipuncture
  • Mix by gentle inversion immediately after collection
  • Centrifuge, remove plasma/serum and refrigerate
  • Transport to laboratory as soon as possible

Reasons for Rejection

  • Wrong collection tube
  • Gross hemolysis
  • Gross icterus
  • Gross lipemia
  • Bacterial contamination
  • Frozen whole blood


b-hCG assay is only approved for the early detection of pregnancy. Ectopic pregnancy cannot be distinguished from normal pregnancy by HCG measurements alone and must be interpreted with the overall clinical picture. This test is not approved for use as a tumor marker. This test is designed only to detect pregnancy. Do not use as a tumor marker

CPT Code

  • 84702