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Doctor insights on: Persistence Fetal Hemoglobin

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Emily Lu Dr. Lu
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How common is the inherited persistence of fetal hemoglobin?

Emily Lu Dr. Lu
1 doctor agreed:
How common is  the inherited persistence of fetal hemoglobin?

Difficult to measure: This is difficult to measure because in most people with inherited persistence of fetal hemoglobin are entirely asymptomatic. However, population studies have shown that about 10% of the population has been seen to have some persistence of fetal hemoglobin but in varying levels (from 0.8% of cells containing the fetal hemoglobin up to about 10% fetal hemoglobin levels). ...Read more

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Dr. Vijay Sankaran
114 doctors shared insights

Fetal Hemoglobin (Definition)

Is the main hemoglobin that transport oxygen in the fetus during the last seven months of development in the uterus and in the newborn until roughly 6 months old. , fetal hemoglobin is able to bind oxygen with greater affinity than the adult hemoglobin, giving the developing fetus better access to oxygen ...Read more


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What is the definition or description of: fetal hemoglobin?

What is the definition or description of: fetal hemoglobin?

Hb F: Is the main hemoglobin that transport oxygen in the fetus during the last seven months of development in the uterus and in the newborn until roughly 6 months old. , fetal hemoglobin is able to bind oxygen with greater affinity than the adult hemoglobin, giving the developing fetus better access to oxygen from the mother's bloodstream. ...Read more

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How to find how much larger kc is for fetal hemoglobin than adult hemoglobin?

Unclear question: Fetal and adult hemoglobin are about the same size. Fetal Hb binds oxygen more tightly. ...Read more

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What are the risks for the patient in undergoing a fetal hemoglobin test?

What are the risks for the patient in undergoing a fetal hemoglobin test?

Blood test: This is just a blood test. The risks are the same for any blood testing, such as bruising and the needle site. ...Read more

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I have elevated levels of fetal hemoglobin. What can cause this? I am not pregnant. Does it point to a disorder?

I have elevated levels of fetal hemoglobin. What can cause this? I am not pregnant. Does it point to a disorder?

Not necessarily: Elevated fetal hemoglobin may represent what is known as persistence of fetal hemoglobin. It would be helpful to know what the percentages of various hemoglobins are in your electrophoresis, This may be normal for YOU or it could represent a topic which needs investigation. Please speak to your doctor. Good luck! ...Read more

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Some adults with sickle cell anemia have high levels of fetal hemoglobin. Any reason for this?

Some adults with sickle cell anemia have high levels of fetal hemoglobin. Any reason for this?

Epigenetics and drug: We know that sickle cell patients that have increased Hemoglobin F typically have less sickle cell complications. This is the basis for using Hydroxyurea in sickle cell patients. Some individuals have elevated Hemoglobin F levels due to differences in the genetic region of the beta and gamma globin genes that prevent the normal shutting-off of the gamma globin gene. This leads to increased HGB f. ...Read more

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37 year old woman 29 week of pregnant ,high grade fever last 1 week,plecenta slightly displace abnormal fetal movement hemoglobin level low lDh level?

37 year old woman 29 week of pregnant ,high grade fever last 1 week,plecenta slightly displace abnormal fetal movement hemoglobin level low lDh level?

High fever, pregnant: This could be very serious. You require immediate medical attention with high fever for over a week and pregnant. Can you see a doctor, or go to a hospital or clinic as soon as possible. ...Read more

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I am 26weeks pregnancy my ths is 0.34 i take 100mcg.And my baby fetal heart rate 145/min and my hemoglobin 9.2gms%.I take macal vip 500mg in daly 2 ?

I am 26weeks pregnancy my ths is 0.34 i take 100mcg.And my baby fetal heart rate 145/min and my hemoglobin 9.2gms%.I take macal vip 500mg in daly 2 

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D/w your doctor : Follow up with your doctor/ob- you need to have your iron and folate (folic acid) level checked and if they are low- definitely need to get replacement. Your thyroid medication dose may also need to be adjusted down slightly. Also, you need to take prenatal multivitamin one a day. I don't know what is inside the macal vip- but i assume it is vit c mainly. Discuss further with your ob. ...Read more

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Help docs, is increased fetal haemoglobin is seen in haemoglobin h disease?

Help docs, is increased fetal haemoglobin is seen in haemoglobin h disease?

Why do you ask?: Fetal hemoglobin, being made of alpha and gamma chains, tends to be up in the beta thalassemias, when it's hard to make beta chains. It's not so much a marker of hemoglobin H disease, where the problem is making too little in the way of alpha chains. ...Read more