What will this test tell me?

Your ABO group (A, B, AB or O) and your Rh type (positive or negative), which together give one of the eight common blood types, such as O-positive or AB-negative.

No. There is no fasting or preparation, and you can test at any time of day.

How accurate is the test?

ABO typing is checked in two directions: your red cells are tested with anti-A and anti-B antibodies, and your plasma is tested against cells of known type. When both agree, the blood type is determined reliably. Very rare blood groups outside the eight common types are not reported.

Why does Rh type matter in pregnancy?

When an Rh-negative mother carries an Rh-positive baby, her immune system can make antibodies against the baby's red cells, which careful testing and care help prevent. If you are Rh-negative, tell your obstetric clinician; they decide on any follow-up, such as Rh immune globulin.

How fast will I get results?

Quest typically reports this test within about 2 to 3 days after your sample reaches the lab. Your results appear in your private JustLabs dashboard.

Can my blood type change?

No. Your blood type is inherited from your parents and stays the same for life, so you normally only need this test once.

Can I use my FSA or HSA, and does insurance cover it?

JustLabs is a cash-pay service: the test is $14, plus one flat $18 Lab & Physician Order Fee per order, and no insurance claim is filed. Lab tests are generally eligible for FSA and HSA funds, and JustLabs provides an itemized receipt you can submit, but check with your plan administrator to confirm.

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✨ General Health

Blood Type Test (ABO Group and Rh Type)

Blood Type

Learn your blood type: your ABO group (A, B, AB or O) and whether you are Rh-positive or Rh-negative. No fasting or preparation is needed, and the result is for your personal knowledge.

Your blood type is inherited and does not change over your lifetime. It is defined by markers on the surface of your red blood cells: the A and B antigens, which give the four ABO groups (A, B, AB and O), and the Rh protein, which makes you Rh-positive when it is present and Rh-negative when it is absent. Combined, these give the eight common blood types, such as O-positive or A-negative.

Many people simply do not know their blood type. Knowing it is useful before a pregnancy, because an Rh-negative mother carrying an Rh-positive baby needs specific care to protect the baby, and it is handy background information for your own health records.

The lab determines your ABO group in two steps: your red cells are mixed with antibodies against A and B, and your plasma is checked against cells of known type. A similar method gives your Rh type.

For your own information. Hospitals and blood banks always run their own blood typing before a transfusion or donation, and this result can't be used for legal or paternity purposes.

Price

$14

All-in

$32

incl. $18 lab & physician fee

Results

2-3 business days

Fasting

Not Required

What's Measured

ABO Group

Rh Type

What This Test Measures

This test identifies your ABO blood group (A, B, AB or O) by detecting the A and B antigens on your red blood cells and confirming the matching antibodies in your plasma, and your Rh type (positive or negative) by detecting the Rh (D) protein on your red cells. Quest performs it by immune agglutination: antibodies make red cells clump when the matching antigen is present.

Who Should Consider This Test

Anyone curious about their blood type, people planning a pregnancy who want to know their Rh status in advance, and anyone who wants their blood type on hand for their personal health records. It is not a substitute for the typing and crossmatch a hospital performs before a transfusion.

Health Insights

Conditions Screened

ABO blood groupRh (D) statusRh-negative status before pregnancy

When to Get Tested

Any time; your blood type is inherited and stays the same throughout life, so one test is normally enough. If you are planning a pregnancy, knowing your Rh type ahead of time can be useful, although your prenatal care team will also test it during pregnancy.

No fasting needed. How to prepare for your blood test →

Understanding Your Results

Your report shows your ABO group (A, B, AB or O) and your Rh type (positive or negative), for example "O, Rh positive". There is no normal or abnormal result: every type is a normal variant. Type O red cells can be given to people of any ABO group, which is why type O is called the universal donor, and Rh-negative people should receive only Rh-negative blood. If you are Rh-negative and pregnant or planning a pregnancy, share the result with your obstetric clinician, who decides whether Rh immune globulin is needed. Rare blood types beyond the eight common types are not identified by this test. Review your results with a clinician if you have questions.

What to Expect

After placing your order, we send it straight to Quest Diagnostics — there is no consent form to sign and no partner email to wait for. Your requisition is usually ready to download from your dashboard within about an hour, and you can book your blood draw at any Quest Diagnostics location.

The blood draw typically takes just a few minutes. Results are usually available within 2-3 business days and will appear in your secure JustLabs dashboard.

Our results include reference ranges and easy-to-understand indicators showing whether your values are within normal limits.

How much does the Blood Type test cost?

The Blood Type test costs $14 at JustLabs — $32 all-in, since the $18 lab & physician order fee is charged once per order, however many tests you add. The price is fixed before your blood draw; no insurance or doctor visit needed.