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Pregnancy Test (Qualitative Urine β-Human Chorionic Gonadotropin)

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

This test detects the presence of a hormone called β-human chorionic gonadotropin (β-hCG) in your urine, which appears after implantation of a fertilized egg in early pregnancy.

Quick summary

["This simple test helps confirm whether you may be pregnant."]

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

Key facts at a glance

LOINC
82961-4
Short code
HEDIS 2017-18 Preg Test Excl
Synonyms
HEDIS 2017-18 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

What the Test Measures

The test measures β-hCG, a hormone produced by the placenta shortly after conception. Elevated levels indicate pregnancy, while very low or undetectable levels suggest it may not be pregnant or that the pregnancy may not be viable.

When to Take the Test

You can take this test at home or in a lab. For best accuracy, take it after missing your period or following your healthcare provider’s advice. Early pregnancy tests are most reliable when taken after the first day of a missed period.

How the Test Works

The test detects β-hCG in your urine through an immunoassay method, which identifies the hormone’s presence by reacting with antibodies. A positive result means the hormone is present, which is typically associated with pregnancy.

What to Expect

If the test is positive, it usually means you are pregnant. However, a negative result does not always mean you are not pregnant—especially if you are very early in your cycle. Follow-up testing may be recommended if needed.

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

Pregnancy Test

Frequently asked questions

How soon can I take this test?
The test can be taken as early as the first day of a missed period, but results may be less accurate before that time. If you're unsure about the timing, consult your healthcare provider.
What does a positive result mean?
A positive result strongly suggests pregnancy, but it’s important to confirm with a healthcare provider. If you have concerns about multiple positive tests, discuss them with your doctor.
Can I take this test if I have a medical condition?
Yes, but some conditions (like certain cancers) may cause false-positive results. If you have a history of medical conditions or are unsure, let your healthcare provider know before testing.
  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