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Human Chorionic Gonadotropin (hCG) Pregnancy Test, Serum

Published: August 9, 2026Updated: August 16, 2026

This test measures the hormone human chorionic gonadotropin (hCG) in your blood to help determine if you're pregnant.

Quick summary

["An hCG test checks for pregnancy by detecting a hormone produced after fertilization."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
96080-7
Short code
HEDIS MY 2020 Preg Test Excl
Synonyms
HEDIS MY 2020 Preg Test Excl
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
98
Ref high
107
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82435
SNOMED
110743000
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test if you suspect you might be pregnant, have missed a menstrual period, or are experiencing early pregnancy symptoms like nausea or breast tenderness. It can also be used during pregnancy monitoring or in cases of suspected ectopic pregnancy.

How the Test Works

What to Expect Before the Test

Preparation

No special preparation is needed for this test. However, inform your healthcare provider about any medications you are taking or conditions you have that might affect results.

What to Expect During the Test

After the test, you may feel some bruising or soreness at the injection site, but this typically resolves quickly. You can resume your normal activities immediately.

Reference range

Adult: 98-107 mmol/LN/A

Specimen: serum

No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

hCG (Serum)

Frequently asked questions

How soon can I get my results?
Results are usually available within 1 to 3 business days, depending on your lab’s processing times. Your healthcare provider will discuss the results with you.
What does a positive result mean?
A positive hCG test result strongly suggests pregnancy. However, it can also be positive in non-pregnant individuals with certain medical conditions. Confirmation with additional testing or a follow-up visit is recommended.
Can I take anything to prepare for this test?
No specific preparation is required. However, inform your healthcare provider about any medications you are taking, including over-the-counter drugs or supplements, to ensure accurate results.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy