: Deprecated Streptococcus pneumoniae Serotype 14 Antibody Test
: This is a discontinued laboratory test that was designed to detect antibodies against Streptococcus pneumoniae serotype 14. It is no longer offered for clinical use.
[": Because this test is deprecated, your healthcare provider will order a current, validated method if pneumococcal antibody testing is needed."]
Key facts at a glance
- LOINC
- 22546-6
- Short code
- Deprecated S pneum14 Ab Ser-Rto
- Synonyms
- Deprecated S pneum14 Ab Ser-Rto
- Category
- coagulation
- 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 Was
: This assay was intended to measure antibodies produced against a specific capsule type of the bacterium Streptococcus pneumoniae, known as serotype 14. Antibodies to pneumococcal serotypes are part of the body's immune defense against these bacteria.
: Why It Was Used
: Pneumococcal antibody testing has historically been used to help assess whether a person has protective immunity after vaccination or natural exposure, or in the evaluation of certain immune deficiencies. The serotype 14 component was one part of that broader assessment.
: Why It Is Deprecated
: A deprecated test is one that has been retired from active laboratory use, typically because newer, more reliable or more broadly informative methods have replaced it. Results from a discontinued test may not be comparable to results from current assays.
: What to Do Instead
: If your provider believes pneumococcal antibody testing is appropriate, they will order a currently available test through an accredited laboratory. Do not rely on old results from this discontinued assay to make treatment decisions.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
: Pneumococcal antibodies help protect against infection by Streptococcus pneumoniae, a bacterium that can cause pneumonia, bloodstream infection, and meningitis. Testing for antibodies to individual serotypes can support evaluation of immune function and vaccine response, but it must be performed with current, validated assays and interpreted alongside your clinical history by a qualified healthcare professional.
Short name
: NONE
Frequently asked questions
: Is this test still available?
: Can I use an old result from this test?
: What test would replace it?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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