sherif 2 Posted May 19 Hello I want a book which describes calculations in blood bank as HB of PRBCs unit -platelets in unit -fibrinogen in FFP OR CRYO .......etc Share this post Link to post Share on other sites
David Saikin 1,159 Posted May 23 Mollison. All that info is general. If you get apheresis plts, they usually have the plt count attached. I don't know of anyplace that will give you numbers for fibrinogen in each individual unit. There are standards which the components need to meet (usually 75% of units tested must meet the std criteria). 1 Malcolm Needs reacted to this Share this post Link to post Share on other sites
sherif 2 Posted May 24 On 5/23/2018 at 5:26 PM, David Saikin said: Mollison. All that info is general. If you get apheresis plts, they usually have the plt count attached. I don't know of anyplace that will give you numbers for fibrinogen in each individual unit. There are standards which the components need to meet (usually 75% of units tested must meet the std criteria). I mean how to calculate them ? Share this post Link to post Share on other sites
David Saikin 1,159 Posted May 25 17 hours ago, sherif said: I mean how to calculate them ? I don't think there are calculations for what you want. You have to do the actual counts of cells if you want that data. I don't know how you would calculate the hgb in a unit of blood other than testing. YOu can calculate how much plasma you want to give; platelets are known to give an "increment" based on the count in the bag - as long as the patient is not actively using/destroying them. As I said previously, there are standards that blood components need to meet when they are QC'd. Units need to be tested - rbcs for hct, plts for count, plasma/cryo for fibrinogen. Every component is not tested, the vast majority are not. I think you are seeking info that is not pertinent. Share this post Link to post Share on other sites
sherif 2 Posted May 25 58 minutes ago, David Saikin said: I don't think there are calculations for what you want. You have to do the actual counts of cells if you want that data. I don't know how you would calculate the hgb in a unit of blood other than testing. YOu can calculate how much plasma you want to give; platelets are known to give an "increment" based on the count in the bag - as long as the patient is not actively using/destroying them. As I said previously, there are standards that blood components need to meet when they are QC'd. Units need to be tested - rbcs for hct, plts for count, plasma/cryo for fibrinogen. Every component is not tested, the vast majority are not. I think you are seeking info that is not pertinent. yes i mean for example in CRYO unit if we take a sample to test fibrinogen how to calculate the total amount of fibrinogen in this CRYO unit ? Share this post Link to post Share on other sites
David Saikin 1,159 Posted May 25 Take your fibrinogen result and multiply it by the volume of the bag. x mg/dL x dL/100 mL x vol (in mL) of your cryo = total mg of product Someone should correct this if in error, but it seems logical to me. the dLs and mLs cross each other off leaving only mg/product. This is pretty basic stoichemistry. Wouldn't hurt to get a chem book or the AABB Technical Manual. Share this post Link to post Share on other sites
