x
151 Physicians Online

Question:

Sickle cell test

Dear Ask The Doctor:
Last year I had a blood test done which came back positive for the sickle cell trait. I want to do a second blood test to be sure, but first I'd like to know if there is any possibility of a false-positive in a sickl cell test. If it makes any difference, I had fasted for a full 24 hours prior to the test, thinking it was required. Thanks in advance.


Answer:

False positive sickle cell test is possible.  It depends on the type of test offered by the lab
Any condition which leads to less oxygen supply to body such as living in high altitude areas,iron deficiency anaemia , blood tests done after exertion, and if one has blood transfusion in recent past.
I do not think fasting has any impact on the test results.
Newer tests screening by hemoglobin electrophoresis have eliminated the majority of false positive tests.


Have a Question? Ask The Doctor Here.

Sign In to join in the conversation.

Related Answers:

My wuld be age is 28. her hrmoglobin level is 9.5. Wht are challenges aftt marraige. m fit n hemoglobin level 14

Hi Doctor My name is Anil. My dad got his blood checked yesterday and found out that he has a hemoglobin count of 3....

Recently had some bloodwork done. 24 year old Caucasian male. This was part of my normal workup and I had the followi...

Hi, I am a 26/F , 105lbs, 67 inches. (Naturally thin, do not diet) I got the below CBC results on 2/24/15 and n...

Im 15 yrsold n yesterday i was running n i just started to slow down n im a fast runner n as i ran my chest started k...

I think i have an anemia.. and what should i do to treat it? i want to treat it right away, i dont want to visit a do...

I have iron deficiency anemia and the other day I passed out but my friends said it looked like I was having a seizur...

Hi my baby is 4 months old..when went for 4 th month checkup dr adviced to check heomoglobin and when checked it is 9...

Hi doctor .. my mother aged 57 had last year blood transfusion of 2 unit after severe chest pain through out 1 week (...

My father(age 46) has low hemoglobin level of 5.4 g/dl but high iron levels of 222.9ug/dl , T.RBC is 1.27 millions/cu...

You’re in good hands, meet ATD’s founding physicians.

Dr. Suneel Sharman M.D.

  • Board Certified GP
  • CMO ATD Health Network Inc.
  • Adjunct Professor at U Of T

Dr. Kunaal Jindal M.D.

  • Board Certified Plastic Surgeon
  • Director ATD Health Network Inc.
  • Fellowship Training Atlanta, GA