Home » Browse Health Topics » Anemia » Sickle cell test
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.
Sign In to join in the conversation.
You’re in good hands, meet ATD’s founding physicians.
Dr. Suneel Sharman
- Board Certified GP
- CMO ATD Health Network Inc.
- Adjunct Professor at U Of T
Dr. Kunaal Jindal
- Board Certified Plastic Surgeon
- Director ATD Health Network Inc.
- Fellowship Training Atlanta, GA
Sickle cell trait or Sickle cell disease
Baby 16 month old blood test results Hb A 58% , Hb S 35.5%. Is my baby ill? what form of thalasemia is or its sickle ...
Anemia or no Anemia?
Very low iron stores but normal hemoglobin? I'm tired more like exhausted all the time, shortness of breath, heart pr...
QUESTION ANSWERED - REPLY TO THAT QUESTION
MY PCP FEELS ALL I NEED IS ORAL IRON. MY RECENT COLONOSCOPY WAS FINE AND NO BLOOD - SHOULD I PERHAPS PUSH FARTHER TO ...
Chronic Anemia with Unknown Etiology - Labs Inc...
Chronic anemia of unknown origin (> 10 years) 34 y/o female Roux en y gastric bypass 7 years ago (no complicat...
Evaluation for paroxysmal nocturnal hemoglobinuria
What does PNH viability of 71% mean on a test of peripheral blood?
My period is really really heavy and thin not c...
My period is really really heavy and thin.. not clotting at all, keep having headaches and i keep falling asleep.. bu...
Hello, Recently did blood tests and have all n...
Hello, Recently did blood tests and have all normal except the concentration of mean corpuscular hemoglobin (CHCM) I...
Sir, My son is 13 years old and he is a
Sir, My son is 13 years old and he is a swimmer and practices swimming for total 3 hours daily ( 1.5 hour in mo...
Hello.I am a fourteen year old girl, for the
Hello.I am a fourteen year old girl, for the past year, I have been suffering from iron deficiency anemia. I recently...
II suspect it may be due to anemia.
Thanks for help. i have fatigue on my upper shoulder and shortness of breath.