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Myco Plasma Antibody Screening (Qualitative) for Pneumococcal

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

This test checks for the presence of antibodies in your blood that may indicate exposure to certain bacteria, specifically pneumococcal organisms, which can cause infections like pneumonia.

Quick summary

["Helps determine if you’ve been exposed to pneumococcal bacteria, guiding potential preventive or treatment decisions."]

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

Key facts at a glance

LOINC
17302-1
Short code
M pneumo Ab Ser Ql
Synonyms
M pneumo Ab Ser Ql
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 detects antibodies specific to pneumococcal bacteria in your plasma or serum. Antibodies are proteins your immune system produces in response to exposure to these bacteria. A positive result suggests your body has recognized and reacted to the bacteria, though it does not confirm active infection.

Why It Might Be Ordered

Your healthcare provider may order this test if you have a history of pneumococcal infections, are at higher risk (e.g., due to age, weakened immune system, or chronic conditions), or if you are preparing for procedures that could expose you to pneumococcal bacteria.

Sample Collection and Preparation

A blood sample is drawn from a vein, typically in your arm. The blood is processed to separate plasma or serum, which is then tested for pneumococcal antibodies using an immunoassay method. This process usually takes a few minutes, and you may feel a brief pinch during the draw.

Test Results and Interpretation

Results are reported as either positive (qualitative) or negative, indicating the presence or absence of pneumococcal antibodies. A positive result does not confirm an active infection but may signal past exposure or vaccination response.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Pneumococcal Antibody Screen (Serum/Plasma)

Frequently asked questions

What does a positive result mean?
A positive result means your blood contains antibodies against pneumococcal bacteria, which could indicate past exposure or vaccination. It does not confirm an active infection and may require further evaluation by your healthcare provider.
Can this test be used to diagnose pneumonia?
No, this test is not used to diagnose pneumonia or other pneumococcal infections. It helps assess exposure or immune response but requires clinical correlation with symptoms and other diagnostic tests.
How often should I get this test?
The need for retesting depends on your individual health status, risk factors, and healthcare provider recommendations. Routine testing is generally not recommended unless advised by your provider.
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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