New England · Hepatitis A Antibody Test – IgM Blood Test
Hepatitis A Antibody Test – IgM Blood Test in New Hampshire
Below is a plain-language overview of the hepatitis a antibody test – igm blood test. This blood test looks for IgM antibodies that the body makes during a recent hepatitis A infection. It helps clinicians tell whether someone has an active or very recent infection.
Lab requirements in New Hampshire
Here is what you need before ordering and completing the Hepatitis A Antibody Test – IgM Blood Test in NH. Review each item and confirm the details with the collection lab.
- Physician's order
- Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
- Fasting
- Some tests require fasting or avoiding certain foods or drinks beforehand. You will be informed when you order — confirm the details with the collection lab.
- Preparation
- In general, no special preparation is needed for this blood test, but you should follow the instructions provided by the collection lab. Tell the lab about any medications or health…
- Sample & visit
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Identification
- Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
- Turnaround
- 1-3 business days
- Availability
- Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.
Before you go
- Order your test before visiting a lab, then use the requisition form in your account.
- Print the requisition form, or fax it to the lab directly from your account.
- No scheduling is needed — visit the collection lab during its normal business hours.
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Bring a government-issued photo ID in case the lab requests it.
- Results are posted to your secure account within 1–3 business days.
Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.
What this test is
The Hepatitis A Antibody Test (IgM) is a blood test that detects immunoglobulin M antibodies directed against the hepatitis A virus. IgM antibodies usually appear early after infection and are a sign of an acute or recent infection. The test is different from tests that check for IgG antibodies, which can indicate past infection or vaccination.
What it measures
- Hepatitis A IgM antibody — reflects a recent or acute hepatitis A infection
- Hepatitis A IgG antibody — sometimes measured separately to show past infection or vaccination
What the test involves
A healthcare professional collects a small sample of blood, usually from a vein in your arm, using a standard blood draw. The sample is then sent to a laboratory for analysis.
Why it is often ordered
A clinician may order this test when someone has symptoms that could be caused by hepatitis A, such as jaundice, fatigue, nausea, or abdominal discomfort. It may also be ordered after a known or suspected exposure to the virus, or to help investigate an outbreak.
Preparation
In general, no special preparation is needed for this blood test, but you should follow the instructions provided by the collection lab. Tell the lab about any medications or health conditions if they ask.
How results are reported
Results are typically reported as positive, negative, or sometimes equivocal, along with a reference range from the performing laboratory. Reference ranges and reporting formats can vary between laboratories, so your clinician will interpret the result in the context of your health history.
Before you go
- Whether any special preparation is needed before the blood draw
- How and when results will be shared with you or your clinician
- Whether additional tests, such as IgG or liver function tests, are being ordered at the same time
Cities
Hepatitis A Antibody Test – IgM Blood Test in New Hampshire communities
Choose your city for local context and to order this test.