Epstein-Barr virus (mono)

EBV test · Epstein-Barr antibodies · mono test · mononucleosis test · glandular fever test

This blood test looks for antibodies to the Epstein-Barr virus. It helps show whether you have mono now or had it before.

For a long fever, a very sore throat, swollen glands in the neck, and weakness. It is common in children and teenagers.

⏱ Duration: the blood draw takes a few minutes; results usually come in 1 to 3 days

Be sure to tell your doctor

Food. You usually do not need to fast strictly, but it is better to come 3 to 4 hours after a light, non-fatty meal. Check with the lab.
Medicines. Do not stop anything on your own. Tell your doctor what you take. They will decide if anything needs to change before the test.
Your child. If a child is being tested, tell them there will be a quick prick. Bring water and a snack for afterward.
Clothing. A sleeve you can easily roll up above the elbow.

You sit down and rest your arm on the armrest
A band is tied above your elbow, and you are asked to clench your fist a few times
The skin is wiped with antiseptic
A quick prick. Blood fills the tubes in a few seconds
The needle comes out, and a cotton pad is pressed on the spot

Press the cotton pad for 3 to 5 minutes
Until your doctor says otherwise: no sports or rough play. Mono makes the spleen bigger
Your doctor will explain the result. Usually several types of antibodies are checked

Sudden pain on the left side of the belly, weakness, or paleness: call emergency services
Trouble breathing or swallowing: call emergency services
Fever lasting more than a week: tell your doctor

How does Epstein-Barr virus spread?

Mostly through saliva: kissing, shared cups, and toys. Most people get it in childhood.

Why no sports?

With mono, the spleen is enlarged and can be injured by a hit. Your doctor will say when you can go back to sports.