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Doctor insights on: Blood Tests For Infection

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Dr. Ira Katz
5 doctors shared insights

Blood Tests For Infection (Overview)

Test for infection with syphilis, cmv, toxoplasmosis, rubella. Infections can be diagnosed by a blood test looking for antibodies.


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What blood test tests for staph infection in the blood?

What blood test tests for staph infection in the blood?

Blood Cultures: This is not a common question or situation and am not sure why you would ask. But, there are blood cultures. Staph is usually diagnosed by examination or direct wound culture. ...Read more

Dr. Ira Katz
5 doctors shared insights

Blood Tests For Infection (Overview)

Test for infection with syphilis, cmv, toxoplasmosis, rubella. Infections can be diagnosed by a blood test looking for antibodies.


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Is it possible to have an infection and have negative results on blood tests?

Is it possible to have an infection and have negative results on blood tests?

Yes: But this depends upon the type of infection to which you are referring and the type of blood tests you have undergone. If you are referring to blood cultures, it is very common for these to be negative in the presence of many forms of infections, and the reasons are quite complex. ...Read more

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Can normal blood tests detect signs of HIV two years after infection?

Can normal blood tests detect signs of HIV two years after infection?

Antibody to HIV: Routine blood tests do not examine for HIV and may not detect any abnormality due to HIV at two years after exposure. Antibody to HIV would be positive at that time. ...Read more

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Ct shows large appendix. Blood tests negative for inflammation and infection. Can colonoscopy determine/see cause of pain in cecum/appendix area?

Ct shows large appendix. Blood tests negative for inflammation and infection. Can colonoscopy determine/see cause of pain in cecum/appendix area?

Sometimes large: Size is not the only criteria for appendicitis, Changes in mesentery and wall thickness. Another method of assessing appendix is ultrasound. If appendix localized inflammation in form of hyperemia is usually noted. Colonoscopy would not be method for assessment. Surgeons usually do not act with laparoscopy and surgery unless have some evidence clinically, blood tests, or imaging for appendiciitis ...Read more

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Painful lump above right clavicle, no infection per blood tests. Another lump beside thyroid-not painful. What should I do next?

Painful lump above right clavicle, no infection per blood tests.  Another lump beside thyroid-not painful.  What should I do next?

Biopsy and ?Xray-u/s: Blood test may not be able to tell much, but a biopsy can. You may need a chest xray (possibly a ct of chest/neck as well) and likelly a thyroid ultrasound (u/s). You may need to biopsy of both lumps. Consult doc for further evaluation. Good luck and i wish you well. ...Read more

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1. How to differentiate staph infection in arm pit to swollen lymph nodes? 2. What does a higher WBC mean when having undiagnosable luq pain with otherwise normal X-ray and blood tests

1. How to differentiate staph infection in arm pit to swollen lymph nodes?                 2. What does a higher WBC mean when having undiagnosable luq pain with otherwise normal X-ray and blood tests

Staph: Infections are usually in the skin, whereas axillary lymph nodes are in deeper tissues. But you can have enlarged lymph nodes from skin infections. Elevated WBC count means infection, inflammation, drug effect or, in rare cases, malignancy. Ask your doctor for more specific answers in your case. ...Read more

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Is it possible to detect the strain of a strep infection from blood tests?I can't stand the throat culture.Having high aso titers for years

Is it possible to detect the strain of a strep infection from blood tests?I can't stand the throat culture.Having high aso titers for years

Man up!: You smoke cigarettes but can't stand to have your throat swabbed? Here's what's at issue. You're not going to know if you have a strep throat unless you get a culture or at least a rapid strep screen. If strep throat is present and not treated, your heart can end up ruined. If it's not present and is overtreated with antibiotics, you're risking weeks of diarrhea, or worse. Ask 4 a topical numb rx. ...Read more

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Dr. Marvin Ott
9 doctors shared insights

Infection (Definition)

Infections are invasions of some other organism (fungus, bacteria, parasite) or viruses into places where they do not belong. For instance, we have normal gut bacteria that live within us without causing problems; however, when those penetrate the bowel wall and enter the bloodstream, ...Read more


Blood Tests (Definition)

Blood is usually drawn from your ...Read more