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Doctor insights on: Giardia Antigen

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Is giardia lamblia flagellated protozoan parasite contagious?

Is giardia lamblia flagellated protozoan parasite contagious?

Giardia: This organism lives in many water sources, and can also be transmitted by the fecal-oral route often on the hands of food preparers or servers. It is a commonly underdiagnosed cause of gastrointestinal infection. ...Read more

Antigen (Definition)

Antigens are chemicals which upon exposure to the surface or inside of the body, will cause a reaction term allergic. Many substances will do this and allergic response is the basis for immunological protection for ...Read more


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When would one need a giardia lamblia antigen assay?

When would one need a giardia lamblia antigen assay?

Diarrhea: Non-bloody diarrhea with fevers and weight loss, especially after exposure to potentially contaminated fresh water sources (rivers, lakes) may prompt a stool test to rule out giardia. ...Read more

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When would one need a giardia lamblia antigen assay?

Diarrhea: Non-bloody diarrhea with fevers and weight loss, especially after exposure to potentially contaminated fresh water sources (rivers, lakes) may prompt a stool test to rule out giardia. ...Read more

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What happens if "h. pylori IgG antibodies serum by ELISA positive"?

What happens if "h. pylori IgG antibodies serum by ELISA positive"?

H. pylori infection: .. which causes gastritis with symptoms of early satiety, abdominal pain, heartburn. If you are symptomatic, then you will need the treatment. If you are not symptomatic or have responded to treatment already, then your test result indicates ongoing antibody production (normal immune response to previous infection) and no treatment is required. Good luck! ...Read more

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Hepatitis c (HCV) antibody is reactive. The hepatitis C Recombinant Immunoblat Assay(riba) confirmation test is non reactive.Is antibody false positiv

Hepatitis c (HCV) antibody is reactive. The hepatitis C Recombinant Immunoblat Assay(riba) confirmation test is non reactive.Is antibody false positiv

Well : A positive hepatitis C antibody test with a negative or in a test usually is not a false positive that usually means someone had hepatitis C infection and their body cleared the infection and they are now immune to hepatitis C. Do a Healthtap visit or see a primary care physician for specific diagnosis ...Read more

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Clostridium difficile toxin b gene present clostridium dificile antigen presen. Would u no how severe the c diff is?

Clostridium difficile toxin b gene present
clostridium dificile antigen presen. Would u no how severe the c diff is?

Have diarrhea or no?: C.Difficile is pathogenic in older children & adults (whose colonic microflora are altered by antibiotics, chemotherapy, salmonella/shigella). C.Diff causes diarrhea w/pseudomembranous & other colitis, complicates inflammatory bowel disease, causes fulminant transmural extension, perforation with peritonitis, toxic megacolon. Treatment, & confirmation of post-treatment eradication, is recommended. ...Read more

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HBV test results: Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative. Need any medication or vaccine?

HBV test results: Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative.  Need any medication or vaccine?

Excellent question: and your story stumps many a doctor, often! :) a lot of the recommendations depend on - are you someone with risk factors for HBV? is this the first time that it has been checked? are your liver enzymes normal? are you about to undergo any procedures/ treatments that could put you at risk for HBV? If you have no sig risk factors, yes, I'd vaccinate you if there's potential for exposure. ...Read more

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How antibody kill an antigen?

How antibody kill an antigen?

They don't usually: Antibody does not usually kill an antigen but binds it. The attachment may then, under certain circumstances , triggers the release of certain mediators or the influx of body cells (cytotoxic lymphocytes, macrophage etc) to do the job of killing. This is a very simplistic answer to a complex question however. ...Read more

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Is a core positive antibody for hepetitis b is dangerous. Igm antibody negetive. Surface antigen negetive with surface antibody positive. Explain?

Is a core positive antibody for hepetitis b is dangerous. Igm antibody negetive. Surface antigen negetive with surface antibody positive. Explain?

Past infection: The results you described are consistent with a past infection with hepatitis b from which you have recovered. You body made antibodies to the constituents of the virus. These results are not a cause for concern. ...Read more

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Hiv ab,1/2, eia with relx result repeatedly reactive. HIV 1/2ab differentiation w/refl hiv1 antibody negative hiv2 antibody negative. pos or neg hiv?

Hiv ab,1/2, eia with relx result repeatedly reactive. HIV 1/2ab differentiation w/refl hiv1 antibody negative hiv2 antibody negative. pos or neg hiv?

It depends: In a situation like this you have one positive test and one negative test. The lab should run a tie-breaker test (HIV RNA) to give you a real answer. Also, the first test may be an older test 2nd or 3rd generation) instead of the latest 4th generation) test. It also depends on if you have flu-Like symptoms. Seek help from a specialist in HIV who can help you understand. ...Read more

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H.Pylori ab (igg) positive h mean?

H.Pylori ab (igg) positive h mean?

H Pylori: Means that you have been exposed to h.Pylori in the past...Maybe you were treated already. It does not necessarily mean that you have an active infection. ...Read more

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Hepatitis b surface antigen non-reactive means what?

No active infection: When people have reactive hepatitis b surface antigen, they have proteins from hepatitis b in their blood. These people have active infection and may need treatment. If there is no reactive hbsag, then most likely there is no active infection. Rarely, people who have hepatitis b core antibody detected, but no hepatitis b surface antibody, can have chronic active infection. ...Read more

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hepatitis b surface antigen reactive and hepatitis b surface antibody nonreactive and core antibody total reactive and HBV DNA detected sir plz reply?

 hepatitis b surface antigen reactive and hepatitis b surface antibody nonreactive and core antibody total reactive and HBV DNA detected sir plz reply?

You carry hep B: I am assuming you feel well and this was a surprise finding. There are millions of people like yourself. You will require lifelong health care for it unless / until a means of eradicating it is found. You pose no danger to a partner who is immunized. ...Read more

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Advia hep. C antibody +,HCV RNA -. 3 months later Architect hep. C antibody -, HCV RNA -. 2 hep C Ab Verification tests-.Can above person donate blood?

Advia hep. C antibody +,HCV RNA -. 3 months later Architect hep. C antibody -, HCV RNA -. 2 hep C Ab Verification tests-.Can above person donate blood?

May be: You ought to disclose these results to the blood bank so that they may make a determination on your eligibility to donate along with other health factors. I commend you for considering doing your civic duty. ...Read more

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Igg positive for rubella ;igg pos fr cytomegalo virus?

Igg positive for rubella ;igg pos fr cytomegalo virus?

Immunity: This just means that there is immunity to rubella and cytomegalovirus based on passed infection. ...Read more

Dr. Sanjiv Kaul
72 doctors shared insights

Giardia (Definition)

A parasitic disease caused by Giardia lamblia. About 10% of those infected have no symptoms. When symptoms occur they may include diarrhea, abdominal ...Read more