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ASO Titre Quantitative Serum Test

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ASO Titre Test Overview

To help detect whether you have had a recent strep infection with the bacteria group A Streptococcus; to help identify complications resulting from a strep infection such as rheumatic fever or glomerulonephritis which is a form of kidney disease

ASO (Anti-streptolysin O) is an antibody that the body produces in response to a streptococcal infection caused by group A Streptococcus bacteria. The ASO test is a blood test that measures the level of ASO antibodies in the blood, and it is used to diagnose a recent or past streptococcal infection.

ASO titers are reported as a quantitative value, which indicates the level of ASO antibodies in the blood. A high ASO titer indicates that the body is producing a large number of ASO antibodies in response to a streptococcal infection. The ASO titer peaks around three to five weeks after the onset of a streptococcal infection and can remain elevated for several months after the infection has resolved.

Associated Tests:

Streptococcus pneumoniae Antigen detection by Agglutination - CSF

Streptococcus pneumoniae Antigen detection by Agglutination - Serum

Streptococcus pneumoniae Antigen detection by Agglutination - Urine

Written by: Supriya Kulkarni, Lead-Content & Training

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ASO Titre Quantitative Serum Test Price

Metropolis Healthcare is a leading diagnostics centre and pathology lab in India equipped with the latest state-of-the-art technologies that provides the ASO Titre Quantitative Serum Test with a clear pricing structure.

The ASO Titre Quantitative Serum Test Price in Mumbai is ₹ 685 .

We are committed to deliver accurate and quality results from the best labs in India with complete transparency regarding test cost and turnaround time. No matter where you are, we strive to offer patients high-quality service that is affordable and accessible.

Frequently Asked Questions

The ASO titre test is ordered when a person has symptoms that caused by a strep infection. It is ordered when the symptoms arise, usually in the weeks after a sore throat or skin infection when the bacterias are no longer present in the throat or skin. The symptoms include:

  • Fever
  • Joint swelling and pain in the ankles and/or knees
  • Small, painless nodules under the skin
  • Rapid, irregular movements
  • Skin rashes
  • Shortness of breath, heart palpitations, and/or chest pain

Antistreptolysin O (ASO) is an antibody targeted against streptolysin O, a poisonous enzyme produced by group A Streptococcus bacterium. ASO and anti-DNase B are the most familiar of several antibodies that are created by the body's immune system in response to a strep infection with group A Streptococcus.

  • A quantitative ASO test is usually ordered as a follow-up to a positive rapid strep test or throat culture to confirm the diagnosis of a recent streptococcal infection.

It can also be used to monitor the progress of the infection and to detect any complications, such as rheumatic fever or glomerulonephritis, which can occur if the streptococcal infection is not treated promptly

The ASO test is a blood test that measures the level of ASO antibodies in the blood.

 

This test requires a blood sample. A tourniquet (elastic) band is placed tightly on the upper arm. The patient is then asked to make a fist. This helps in the build-up of blood filling the veins. The skin is disinfected before needle insertion and the blood sample is collected in vacutainer

An abnormal ASO titer test result can indicate that a person has been recently or previously infected with the group A Streptococcus bacteria, which can cause a range of illnesses, such as strep throat, scarlet fever, and rheumatic fever. A high ASO titer level may also suggest that the person is currently infected with the bacteria, or has recently been infected and is still producing ASO antibodies.

If the ASO titer test result is high, the healthcare provider may order additional tests, such as a throat culture, to confirm the presence of a streptococcal infection. If a streptococcal infection is confirmed, appropriate treatment, such as antibiotics, will be prescribed to treat the infection and prevent any complications.

There are generally no special preparations required before an ASO (Anti-streptolysin O) titer test. However, it is recommended to inform your healthcare provider about any medications you are taking, as some drugs can affect the test results.

  • The ASO titer test may be ordered by a healthcare provider if a person is experiencing symptoms of a streptococcal infection, such as sore throat, fever, and swollen lymph nodes.
  • The test may also be ordered if a person has previously had a streptococcal infection and is experiencing complications such as rheumatic fever or glomerulonephritis.
  • In addition, the ASO titer test may be ordered to monitor the effectiveness of treatment for a streptococcal infection.

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