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Health Information For Parents
A blood test is when a sample of blood is taken from the body to be tested in a lab. Doctors order blood tests to check things such as the levels of glucose, hemoglobin, or white blood cells. This can help them detect problems like a disease or medical condition. Sometimes, blood tests can help them see how well an organ (such as the liver or kidneys) is working.
A liver function panel is a blood test that helps doctors check for liver injury, infection, or disease. Liver function panels also can check for side effects in the liver from some medicines.
A liver function panel is done to learn information about the levels of:
Your child may be asked to stop eating and drinking for 8 to 12 hours before the test. Tell your doctor about any medicines your child takes because some drugs might affect the test results.
Wearing a T-shirt or short-sleeved shirt for the test can make things easier for your child, and you also can bring along a toy or book as a distraction.
Most blood tests take a small amount of blood from a vein. To do that, a health professional will:
In babies, blood draws are sometimes done as a “heel stick collection.” After cleaning the area, the health professional will prick your baby’s heel with a tiny needle (or lancet) to collect a small sample of blood.
Collecting a sample of blood is only temporarily uncomfortable and can feel like a quick pinprick.
Parents usually can stay with their child during a blood test. Encourage your child to relax and stay still because tensing muscles can make it harder to draw blood. Your child might want to look away when the needle is inserted and the blood is collected. Encourage your child to relax by taking slow deep breaths or singing a favorite song.
Most blood tests take just a few minutes. Occasionally, it can be hard to find a vein so the health professional may need to try more than once.
The health professional will remove the elastic band and the needle and cover the area with cotton or a bandage to stop the bleeding. Afterward, there may be some mild bruising, which should go away in a few days.
Blood samples are processed by a machine, and it may take a few hours to a day for the results to be available. If the test results show signs of a problem, the doctor might order other tests to figure out what the problem is and how to treat it.
A liver function panel is a safe procedure with minimal risks. Some kids might feel faint or lightheaded from the test. A few kids and teens have a strong fear of needles. If your child is anxious, talk with the doctor before the test about ways to make the procedure easier.
A small bruise or mild soreness around the blood test site is common and can last for a few days. Get medical care for your child if the discomfort gets worse or lasts longer.
If you have questions about the test, speak with your doctor or the health professional doing the blood draw.
Doctors may order bilirubin blood tests for infants or older kids if they see signs of the skin taking on the yellow discoloration known as jaundice.
Hepatitis is an inflammation of the liver. Most cases are caused by a virus â either hepatitis A, hepatitis B, or hepatitis C â all of which can be passed to others by someone who is infected.
Mononucleosis – or “mono” – is an infection that causes flu-like symptoms. It usually goes away on its own in a few weeks with the help of plenty of fluids and rest.
An aspartate aminotransferase (AST) blood test is often part of an initial screening for liver problems.
An alanine aminotransferase (ALT) blood test is often part of an initial screening for liver disease.
Jaundice is when a baby has yellowing of the skin and whites of the eyes. Most types of jaundice go away on their own.
A blood test might sound scary, but it usually takes less than a minute. Watch what happens in this video for kids.
Hepatitis B can move from one person to another through blood and other body fluids. For this reason, people usually get it through unprotected sex or by sharing needles.
Kissing is just one of the ways that someone can spread mononucleosis. Most people who get mono are teens or young adults, but kids can get it too.
Hepatitis, an infectious liver disease, is more contagious than HIV. Find out about the different types of hepatitis.
It’s sneaky, it’s silent, and it can permanently harm your liver. Read this article for more information on hepatitis.
These videos show what’s involved in getting a blood test and what it’s like to be the person taking the blood sample.
If your liver isn’t working properly, it can affect your overall health. Find out why doctors do liver function tests and what’s involved for teens.
It’s sometimes called “the kissing disease,” but kissing is just one of the ways that someone can catch mono.
Tumors happen when cells form a mass or growth. Liver tumors can be benign (not cancerous) or malignant (cancerous).
Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
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