Thalassemia Patients and Friends

Discussion Forums => Miscellaneous Questions => Topic started by: Manal on March 19, 2008, 12:08:48 PM

Title: Correct me if i am wrong!!
Post by: Manal on March 19, 2008, 12:08:48 PM

Hi

I was told that a single transfusion increases the HB by one gram, so does this mean if the HB is 5 for example , you need 5 to six transfusions to be above 10 ?? How many transfusions makes one dependent??

Thanks
Manal

Title: Re: Correct me if i am wrong!!
Post by: maha on March 19, 2008, 12:22:44 PM

Hi Manal
The increase in hb depends upon the hematocrit of the donor blood. Higher the hematocrit, higher will be the increase in hb. There have been times when Hassan`s hb has increased upto 5gm/dl with a single transfusion and the amt of blood transfused has always been 15ml/kg. Hypertransfusions over a period of time ( a year or so) makes one transfusion dependent. To maintain a pre-transfusion hb of 10 then you might require 5-6 transfusions.
take care
MAHA

Title: Re: Correct me if i am wrong!!
Post by: Manal on March 20, 2008, 12:31:28 PM

Thank you Maha for your reply :hugfriend

So does hematocrit gets affected by storing the doner blood for long periods of time?

Manal

Title: Re: Correct me if i am wrong!!
Post by: Nur on April 04, 2008, 08:39:46 AM

hi,

By my expirience, my HB would increase about 1 1/2 gram per bag. So if my HB was 6 and i tranfused 2 bags of blood, my Hb would increase to around 9.

Maybe it works differently with everybody else but for me, i find that this method goes well with my body and i've been using it for such a long time as an unofficial guide. I can briefly calculate how many bags of blood i should request from the blood bank.

Title: Re: Correct me if i am wrong!!
Post by: Waleed on August 12, 2008, 07:50:33 PM

i read formula for calculating raise in hb in books by itf  ... its as

        Amount of blood transfused ( ml )
 =  ____________________________________
             3 x body weight in Kg


But...

   haemolysis splenectomy hepatitus and general physical health of the patient are variable factors...

Illustration :

 I'm not splenectomized ... HepC there but not active ...never a problem in hormones or wutever ... means apart from transfusion i'm totally fit now :

I weigh 44 kg  and if my

H b  is 9.0  pre trans

 then after trans of 1 unit RBC (250 milli litres) my Hb goes to 10.8 ... and from more than 4 years i've been calculating my hb's and nearly everytime its near the approximate ...


But beware that there are variables that might distort estimate