ANA Test Results and Vaccine Concerns in Autoimmune Conditions - Internal Medicine

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Hello, doctor.
I would like to ask what an ANA titer of 1:160 represents.
Does this indicate an autoimmune disease? I also have anemia and palpitations.
A doctor previously informed me that it would be dangerous for me to receive the COVID-19 vaccine; is that true? Should I also avoid the flu vaccine? I received the flu vaccine last year, but I felt very unwell afterward and was bedridden for two days.
I also have a history of allergies, so I am quite concerned.
Additionally, I have experienced unexplained itching all over my body with raised welts that become increasingly itchy.
This condition is temporary, disappearing the next day, but it recurs frequently.
It has been ongoing for three years without complete resolution! Sometimes it is accompanied by pain in my hands or feet, but it is not due to heavy lifting or excessive exercise.
I am unsure why this is happening.
What should I do? Thank you for your patience in reading this long message.

Ru Ru, 30~39 year old female. Ask Date: 2021/09/05

Dr. Gao Jiankai reply Internal Medicine


Hello, thank you for your questions.
I have organized and responded to your inquiries as follows:
1.
What does an ANA titer of 1:160 represent? Does it indicate an autoimmune disease? --> This is a screening indicator for autoimmune diseases.
A higher titer suggests an increased likelihood of a potential autoimmune condition, and further blood tests are needed for confirmation.
2.
I also have anemia and palpitations.
A physician previously informed me that these conditions make it unsafe to receive the COVID-19 vaccine.
Is that true? Can I also not receive the flu vaccine? (I received the flu vaccine last year but felt very unwell afterward and was bedridden for two days.
I also have a history of allergies, so I am concerned.) --> I believe that anemia and palpitations are not contraindications for receiving the COVID-19 vaccine.
Even if you experience discomfort after receiving the flu vaccine, as long as it does not occur immediately after vaccination, you should generally be able to receive the COVID-19 vaccine.
However, since you mentioned symptoms that may indicate immune dysfunction, I recommend that you consult a rheumatologist before deciding which COVID-19 vaccine to receive, as that may be more appropriate.
3.
I have experienced unexplained itching all over my body with welts that become increasingly itchy, which disappear the next day but then recur shortly after.
This has been ongoing for three years without complete resolution! Sometimes it is accompanied by pain in my hands or feet, but it is not due to heavy lifting or excessive exercise.
I am unsure why this is happening.
--> These symptoms resemble those of allergic conditions and rheumatic diseases.
I recommend that you visit a rheumatology clinic and inform the physician about your abnormal ANA test results so they can arrange further examinations for you.
The Allergy, Immunology, and Rheumatology Department at Changhua Hospital is here to assist you.

Reply Date: 2021/09/05

More Info


Understanding the results of an Antinuclear Antibody (ANA) test, particularly when it comes to autoimmune diseases and vaccination concerns, can be quite complex. An ANA result of 1:160 indicates a positive test, suggesting the presence of antinuclear antibodies in your blood. While this result does not definitively diagnose an autoimmune disease, it does warrant further investigation, especially in the context of your symptoms and medical history.

Autoimmune diseases occur when the immune system mistakenly attacks the body's own tissues. A positive ANA test can be associated with several autoimmune conditions, including lupus, rheumatoid arthritis, and Sjögren's syndrome, among others. However, it's important to note that a positive ANA test can also occur in healthy individuals or in those with other conditions, such as infections or malignancies. Therefore, the presence of a positive ANA alone is not sufficient for a diagnosis of an autoimmune disease. It must be interpreted alongside clinical symptoms and possibly further testing.

Regarding your concerns about vaccination, particularly with the COVID-19 vaccine, it is essential to consult with your healthcare provider. Generally, individuals with autoimmune conditions can receive vaccines, including the COVID-19 vaccine, but certain factors must be considered. For instance, if you have active autoimmune disease or are experiencing significant symptoms, your doctor may recommend delaying vaccination until your condition is more stable. The same applies to the flu vaccine; while many individuals with autoimmune diseases can receive it safely, your past reactions and current symptoms should be discussed with your healthcare provider to determine the best course of action.

Your history of anemia and palpitations, along with the skin reactions you've described, adds complexity to your situation. Anemia can be a sign of various underlying conditions, including autoimmune diseases, and may contribute to feelings of fatigue or palpitations. The itching and hives you mentioned could indicate an allergic reaction or another dermatological issue, possibly linked to your autoimmune condition or a separate allergic response.
Given that you've experienced these symptoms for an extended period, it would be prudent to seek a comprehensive evaluation from a specialist, such as a rheumatologist or an allergist. They can perform a thorough assessment, including a detailed history, physical examination, and possibly additional laboratory tests, to better understand the underlying causes of your symptoms.
In summary, while a positive ANA test of 1:160 suggests the need for further evaluation for potential autoimmune conditions, it does not confirm a diagnosis on its own. Vaccination decisions should be made in consultation with your healthcare provider, considering your overall health status and any specific symptoms you are experiencing. Lastly, persistent symptoms like itching, pain, and fatigue warrant further investigation to ensure appropriate management and treatment.

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