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Doctor insights on: How Long Will Mono Show Up In Your Blood

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Can mono still show up on a blood test if your body has fought it all off? If so how long after can it

Can mono still show up on a blood test if your body has fought it all off? If so how long after can it

May be life long: Mono is not a specific infection and similar symptoms can occur with more than one virus. EBV is the usual cause and once a person is infected, the virus stays in the body for the rest of the life and antibodies to EBV can be detected for years after the initial infection. The so call mono-spot test may become negative in a few months after infection. ...Read more

Dr. Michael Ein
773 Doctors shared insights

Mono (Definition)

Infectious mononucleosis, also known as mono, is a contagious illness caused by the Epstein-Barr virus. Symptoms include fever, fatigue, sore throat, enlarged lymph nodes, and enlarged spleen. It is spread via saliva, hence its ...Read more


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How long after having mono will it show up in a blood test? And how long must you have it before it will show up

How long after having mono will it show up in a blood test? And how long must you have it before it will show up

It depends: It depends on the blood test, mono spot is helpful but not as sensitive as IgG and IgM titters. Igg will show if you have ever had it and IgM will show a recent or current infection. ...Read more

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It possible to be relapsing with mono and not show any obvious symptoms? Blood tests would be abnormal?

It possible to be relapsing with mono and not show any obvious symptoms? Blood tests would be abnormal?

Not likely relapse.: Infectious mononucleosis has 2 big causes. Cytomegalovirus (cmv), and epstein-barr virus (ebv). CMV has high fevers with chills, fatigue, and malaise. The main lab finding is peripheral lymphocytosis with over 10% atypical lymphocytes on blood smear. Ebv has pharyngitis and cervical lymphadenopathy. In both cases, infants may be asymptomatic or show mild diseaese, though CMV has side effects. ...Read more

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If you had mono already will it show up again on a blood test?

If you had mono already will it show up again on a blood test?

Yes: Depends on the blood test. There are antibody tests that determine if the mono is new or old, and if you have already had it in the past. ...Read more

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For how long after I have mono will my blood count of monocytes be elevated?

For how long after I have mono will my blood count of monocytes be elevated?

Not important: Is your diagnosis of infectious mono correct? Because high monocytes can represent a variety of other diseases also. If you had lab proven infectious mono, the monocytes stay up for 4-8 weeks but that is not important. If you are worried re infecting others, the + igm of ebv is what determines if you can infect someone else and that may stay up up to 18 months. ...Read more

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I was diagnosed with mono. Took a blood test recently and it had passed. Now I have an enlarged liver after the mono is gone, from what and how long?

I was diagnosed with mono. Took a blood test recently and it had passed. Now I have an enlarged liver after the mono is gone, from what and how long?

Can take a while: Mono is caused by 2 viruses (epstein-barr more often, cytomegalovirus-less common). Same presentation and clinical course. Usually about 2 weeks with fatigue, sore throat, swollen glands; either can cause liver inflammation (w/ or w/o enlargement), enlarged spleen. Can take up to 6 months for recovery. Follow up labs. No alcohol, eat right; no contact sports if enlarged liver/spleen, . ...Read more

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Do they run a specfic test for Mono or can it just show up on regular blood work??

Do they run a specfic test for Mono or can it just show up on regular blood work??

Specific tests: There is one screening and one specific test for mono.
Regular blood tests would not reveal it.
Visit this site for info: https://www. Mayoclinic. Org/diseases-conditions/mononucleosis/symptoms-causes/syc-20350328
Wish you good health! - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...Read more

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February I had bloodwork tested for Mono @ hospital. Do they do full blood counts? If I had a thyroid problem would it show on that test & notify me?

Hard to say: One mono test is quite specific and doesn't look for anything else. The lab is unlikely to do any test that is not ordered, so you must ask the personnel involved to see if anything else was done. ...Read more

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Would having mono 5 years ago cause a blood test to show possibility of autoimmune liver disease today?

Would having mono 5 years ago cause a blood test to show possibility of autoimmune liver disease today?

No: In fact, if you have labs suggesting autoimmune hepatitis, I would be very concerned and would be hammering away at my doctor for all the information I could get. It is possible that an old hepatitis (infectious mono, hepatitis a) may trigger autoimmune hepatitis -- the jury's out on this, but it's moot. Please comply with your diagnosis and if needed treatment, and enjoy a long healthy life. ...Read more

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Sick for 2 weeks now. Throat so bad appeared to be mono (tests show it's not). Blood count normal. What's wrong?

Sick for 2 weeks now. Throat so bad appeared to be mono (tests show it's not). Blood count normal. What's wrong?

Ask your doctor: There are many causes of a sore throat. If you have been tested for mononucleosis you have seen a doctor, so go ask that doctor what he/she thinks you have. Perhaps you have sinusitis and allergies with post-nasal drip. Perhaps you have some other kind of infection. Only your doctor (or another who sees you) can figure this out. ...Read more

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Constant flu symptoms/fatigue, but had lots of blood work. Is mono possibility? Which blood tests would show abnormal in mono?

Constant flu symptoms/fatigue, but had lots of blood work. Is mono possibility? Which blood tests would show abnormal in mono?

Mgt: It is possible, your PCP can check your blood count and a mono spot test. Monitor your temperature, check for swollen nodes, drink fluids and rest. ...Read more

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I've had a low grade fever for 4 weeks. Urinalysis is positive for bilirubin, protein and blood. Cbc shows mono%13. Any idea what all of that means?

I've had a low grade fever for 4 weeks. Urinalysis is positive for bilirubin, protein and blood. Cbc shows mono%13. Any idea what all of that means?

Possibly: The best thing you can do here is to see an infectious diseases expert. You have what is called fever of undetermined origin, and this needs a detailed evaluation, not more antibiotics. Blood in urine is tuberculosis or cancer until proven otherwise. Go see an id doctor now, and good luck, . ...Read more

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If I have a blood test tomorrow morning and I smoked marijuana tonight would it show up? They're testing hemoglobin, mono, tsh, lyme, cmp, sed rate

If I have a blood test tomorrow morning and I smoked marijuana tonight would it show up? They're testing hemoglobin, mono, tsh, lyme, cmp, sed rate

Probably not: Most drug screening tests are urinalysis. Although blood tests can be done they are much more expensive. It sounds like your labs have been ordered to work up specific symptoms, to better help you physician make a clinical diagnosis. I am very skeptical that a thc level would be included in this type of workup. Hopefully you live in a pot legal state.....Otherwise be careful! ...Read more

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I had fever in 5March for 2 weeks then cough for 1 months & not sore throat. In 16 April blood test was Mono positive. Can it show another disease than?

I had fever in 5March for 2 weeks then cough for 1 months & not sore throat. In 16 April blood test was Mono positive. Can it show another disease than?

Mono can present as: Mono is caused by virus's-either Ebstein Barr or Ctomegalo Virus. They both can cause sore throat, fatigue, and cough. if you are still having cough, I would suggest getting that looked at again as there may be other things. Mono can and usually does suppress your immune system which can lead to other bacteria or viruses taking opportunities to flare and cause issues. ...Read more

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What is wrong with my sore throat? When can I feel better? I have a painful sore throat. It has lasted 9 days now. I went to the doctor, and she said that my blood test shows it has a lot of qualities of mono, but is not mono, and it is showing a raise

What is wrong with my sore throat? When can I feel better? I have a painful sore throat. It has lasted 9 days now. I went to the doctor, and she said that my blood test shows it has a lot of qualities of mono, but is not mono, and it is showing a raise

Sore: Sore throat is a fairly common symptom associated with many illnesses. Most of the time it resolves on its own without any other issues. Occasionally it can be due to something more serious that needs treatment. Without examining you myself and sending tests, I cannot tell you what you have. Reasons to seek care again are:

- any fever - since it could be strep and you can't tell without an exam/testing - were you tested for strep?
- if it lasts longer than 3 or 4 days
- any difficulty opening your mouth
- unable to swallow
- severe pain
- bleeding in the throat
- redness or swelling on the outside of the neck
- any difficulty breathing or noisy breathing

9 days is a long time to have a sore throat and sometimes as the illness goes along, clues as to what is causing your pain can become more apparent. Give your doctor another call or consider seeing an ear, nose and throat specialist.
In the meantime, taking Ibuprofen or Acetaminophen for pain, drinking plenty of fluids such as hot tea/broth or cold liquids and a spoonful of honey can help. ...Read more

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What does 14 1 mean for monos pct on blood work?

What does 14 1 mean for monos pct on blood work?

Infected in the past: A titer greater than 1 to 10 (1:10) usually means that you have been infected with ebv at some time. But other diseases that can cause a positive result include some types of cancer, such as leukemia or burkitt's lymphoma.
A titer of 1:320 or greater means that you have an active ebv infection (mononucleosis).
Igm is present. Igg may also be present but may mean that you have been exposed to ebv i. ...Read more

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If I had mono in my 20's, confirmed by blood test, should I be screened for hepetitus now?

If I had mono in my 20's, confirmed by blood test, should I be screened for hepetitus now?

Confusing question: Mono often will have a mild hepatitis as one of it's many symptoms. However, this has nothing to do with the other causes of hepatitis (a, b, c, etc). If you feel you have been exposed to one of those illnesses or have symptoms your pcp can check it out. ...Read more

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What does high mono on blood test mean?

What does high mono on blood test mean?

Nothing specific: The monocytes are a form of white cell, cousin to the lymphocyte, that often increases their relative number in a variety of infectious conditions. Mononucleosis is a lay term for the elevation when it occurs with an EB virus infection. Other viruses and some bacteria can trigger the same relative increase in monocytes. ...Read more

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Today I got my blood test in for mono. The Dr said I had "a little bit of the mono". What does she mean?

Today I got my blood test in for mono. The Dr said I had "a little bit of the mono". What does she mean?

Mono: You had symptoms in order to be tested for mono. My best guess is that the doc meant that you had a mild case, based on your symptoms. The monospot is a positive/negative test. ...Read more

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What do you advise if I want to find something that makes more sense that mono, because I am not having a blood test to see so please help me?

What are you asking?: If there is any suspicion you have infectious mono, you have a basic right to simple labwork and for the sake of yourself and anyone you may love, get it done. If your physician isn't cooperating, get a second opinion; this isn't symptom-matching, it's serious business. The same applies if you think you have some other illness. Take charge and get as much accurate information as you can. ...Read more

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Blood test revealed low abs mono, low HgB and low McHc. Are these connected at all?

Blood test revealed low abs mono, low HgB and low McHc. Are these connected at all?

Maybe: Reference ranges are set so that a few percent of healthies fall outside. However, an anemia (low Hgb) is ALWAYS worth investigating. Your physician will guide you here. Don't be concerned with a slightly low absolute monocyte count. ...Read more

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What does high mchc 36.1, high neuts (abs) 7.1 high monos (abs) 1.1 and high potassium 5.6 mean in my sons blood results he's 10 months old?

What does high mchc 36.1, high neuts (abs) 7.1 high monos (abs) 1.1 and high potassium 5.6 mean in my sons blood results he's 10 months old?

Nonspecific findings: These changes are close to normal values and may represent nonimportant nonsignificant findings. The only way to see if there is abnormality in the blood is to examine the peripheral blood smear and look at the leukocytes and red blood cells and platelets under the microscope the high potassium is the more problematic test result in should be re-checked in one month. ...Read more

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Help please! Is blood test result 3.3 too low for mono %?

Help please! Is blood test result 3.3 too low for mono %?

Incomplete info: What was tested, what are the units of measure? All lab results need to be interpreted in the clinical context and usually the doctor who ordered the test is in the best position to do that. ...Read more

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What amount of blood do they need to take for a mono spot?

What amount of blood do they need to take for a mono spot?

Tiny amount: Monospot tests are frequently performed in offices as a rapid screening tool to detect antibodies to the EBV virus. A small amount of blood is obtained from a fingerstick and used immediately for testing. ...Read more

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Mono is a blood test, viral, no medicine.? What does this mean?!?! ..

Mono is a blood test, viral, no medicine.? What does this mean?!?! ..

Clarification: Read about mononucleosis or epstein barr virus online. It is a common virus that causes fatigue, sore throat, and white exudate on the back of your throat. The only way to know if you have mono is to go the doctor and have a blood test for mono. It is a virus; there is no abtc tx for mono. ...Read more

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What does mono % and monos abs represent on a blood test and what does it mean if they are high?

Infection status: A mono spot test may indicate a present acute infection, the presence of antibodies in your blood may indicate you had mononucleosis in the past. If the clinical picture of mono is present, best to have the test repeated a short time later. ...Read more

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Prob. Again with blood work: why do my neuts. Go hi then low and my lymphs and monos go low then hi being marked abnormal in both directions?

It's what they do: Your body is continuously under attack from microbial invaders. Picture a wwii movie where the #s of marines/af/navy/army troops fluctuate by campaign. Polys are marines who confront bacteria. Lymph special skill is viral and immunity work. Eos are specialized to parasites & allergens and monos may work as elite problem solvers, depending on where they are. The spleen houses reserves. ...Read more

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Recovery stage of mono. My blood looks good & my spleen doesn't seem to be enlarged. When can I start lifting? Can it become enlarged in acute stage?

Wait: The spleen is usually enlarged with infectious mononucleosis (barr epstein virus infection).
The spleen can rupture if there is trauma to the spleen when it is enlarged. Lifting of course depends on the weight of what you lift. Give your body time to heal and the spleen to return normal size and this may take 3 months. ...Read more

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If they drew blood in the emergency room would they test it for mono?

If they drew blood in the emergency room would they test it for mono?

Not automatically: There are thousands of tests that can be run on a blood sample. These range from a simple blood sugar to your chromosome pattern or DNA.Unless a test is ordered specifically, it is not run at random and available for review. Each test requires specific quantity & sample type. They also incur a cost in equipment/additives/time. ...Read more

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My blood test for mono is 21.9% and the mono abs is 1.360 10 3ul what do these two test's represent?

My blood test for mono is 21.9% and the mono abs is 1.360 10 3ul what do these two test's represent?

EBV: I am interpreting the 21.9% as percent atypical lymphocytes. The antibody test - not sure what the 10 3ul means. Did you copy it right? Sounds like mono if you have the right symptoms? How do you feel? ...Read more

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What amount of blood do they take to test for mono?

Small amount: The rapid screening tests performed in many offices only requires a tiny amount of blood obtained by a fingerstick. Testing for specific antibodies will require a venipuncture (needle in the arm) and will require 1 or 2 tubes of blood. ...Read more

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Got new blood work monos is 8.8 and lymph is 20.4. should I be worried since I had stroke year ago?

Got new blood work monos is 8.8 and lymph is 20.4. should I be worried since I had stroke year ago?

Use HealthTap Prime.: I don't follow your question. If you've had a stroke in the past, you could be concerned about getting a 2nd, more debilitating stroke. However, blood tests like the monocyte count & lymphocyte count don't predict stroke risk. They check the immune system. 20% lymphocytes & 8.8% monocytes aren't outside the reference range for most labs, but as a count (per nL) it's high. Upload report on HT Prime ...Read more

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Hi good night... I am a student. I wanted to know what the diagnosis for this patient will be if the blood smear has a lymph count of 65 and mono 21?

Incomplete question: When you submit a question, you must provide enough background information for site docs to review. This includes why the lab was obtained, symptoms, physical findings. You must also submit a concise question that reflects the info submitted. This is not a chat room, so any question must be complete, We do not have access to any previous question or data you upload in a file ...Read more

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I recently had blood work done. My Mono level came back as high 11.7% and Eos came back as high also 8.1%. Another part of my blood work came back a?

All work in a contex: Everything has to be interpreted in a context. Most people get mono as child or young adult. The + tests may just indicate that you had been infected years ago. There are tests which distinguish long term from short lasting antibodies. As to the elevated eosinophils, they are usually elevated when the person has allergies. ...Read more

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Comment 5mnths old blood test. Not in range PLT (180-320) 467 LYMPH% (66-70) 54, 3 MONO (0, 05-0, 9) 1, 09 MONO% (2-6)11, 1 EO (0, 05-0, 7)0, 93 EO% (1-3, 5)9, 5 Thnks?

Comment 5mnths old blood test. Not in range PLT (180-320) 467 LYMPH% (66-70) 54, 3 MONO (0, 05-0, 9) 1, 09 MONO% (2-6)11, 1 EO (0, 05-0, 7)0, 93 EO% (1-3, 5)9, 5 Thnks?

Blood tests: There are a few diseases that leap out from blood tests. Most of the time, however, blood tests don't tell the doctor much on their own. These results fall into the second group, not very specific. Your doctor will need to relate them to the symptoms for which the tests were requested. ...Read more

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Can a complete blood count tell you if you have mono?

Can a complete blood count tell you if you have mono?

No, but: A blood count can tell if you have an abnormal counts of the cells of the blood (white cells, red cells and platelets). One or all can be lower with mono. However, even if you have an abnormal blood count and the right symptoms, you should have the monospot test done to confirm. ...Read more