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HelpTest Code BHCG Beta-hCG, serum, Quantitative
Specimen Requirements
Submit only one of the followings
Preferred
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0mL
Minimum Volume: 0.5mL serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours
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Acceptable
Specimen Type: Plasma
Container/Tube: Green Top (Li Heparin/PST)
Volume: 4.5mL
Minimum Volume: 0.5mL plasma
Collection Instructions: Centrifuge within 2 hours
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Serum |
|---|---|
| Ambient: | 24 hours |
| Refrigerate: | 7 days |
| Frozen: | 12 months |
Reference Interval
≤5 IU/L
The concentration of ß-hCG in maternal serum rises rapidly during early pregnancy. ß-hCG levels between 5 IU/L and 25 IU/L may be indicative of early pregnancy.
1 - 10 weeks post LMP: 202 to 231000 IU/L
11 - 15 weeks post LMP: 22536 to 234990 IU/L
16 - 22 weeks post LMP: 8007 to 50064 IU/L
23 - 40 weeks post LMP: 1600 to 49413 IU/L
LMP: Last Menstrual Period
Days and Times Performed
24 hours, TAT 1 day
Methodology
Chemiluminescent Immunoassay
Service Code
31879
Update
Last updated 16/5/2024
Updated on Methodology.
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Tumour for hydatidiform mole, choriocarcinoma and testicular cancer