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Vaccination history and immunization status (qualitative assessment)

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

This test reviews your documented vaccination records to confirm whether you’ve received recommended immunizations. It helps ensure you’re up to date with vaccines to protect against diseases like measles, tetanus, flu, and others.

Quick summary

["Your immunization status is checked to prevent preventable illnesses and ensure safety."]

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

Key facts at a glance

LOINC
55269-5
Short code
N men immunization status
Synonyms
N men immunization status
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 This Test Measures

This test does not measure actual immune responses or antibody levels. Instead, it checks your medical records for documented vaccinations (e.g., MMR, DTaP, flu shot, COVID-19 vaccine, etc.) against recommended schedules. Results are qualitative—either confirming past vaccinations or noting gaps.

Why It Matters for You

Proper immunization is critical for preventing outbreaks, especially in high-risk groups (e.g., children, elderly, or immunocompromised individuals). This test helps healthcare providers track compliance with vaccination guidelines, particularly in settings like school entry, travel, or pre-surgery clearance.

When You Might Need This Test

You may receive this test for routine checkups, pre-employment screenings, travel requirements, school/college entry, or before certain medical procedures. Some states or employers mandate it for specific roles (e.g., healthcare workers).

What to Expect Before the Test

No special preparation is needed. Results are typically derived from your electronic health record (EHR) or vaccination documentation. You may receive a written report summarizing your immunization history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Frequently asked questions

Why is my immunization status important?
Your immunization status helps prevent disease spread and ensures you’re protected against vaccine-preventable illnesses. Gaps in vaccination may indicate missed opportunities for protection, especially if you’re at higher risk (e.g., pregnant, elderly, or with chronic conditions).
What does a ‘gap’ in my immunization history mean?
A gap means you may not have received all recommended vaccines. This doesn’t mean you’re at immediate risk, but it signals a need for a catch-up series. Your doctor can help determine which vaccines you’re missing and schedule them.
Can this test replace a physical exam or blood work?
No. This test only reviews records; it doesn’t assess current immunity or detect active infections. For health guidance, always consult your healthcare provider about vaccination needs and other lab tests (e.g., antibody titers for specific vaccines).
  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