QUESTION#02
4.0 kg weight of newborn whose present hemoglobin is 5.0 m g/100 cc. Child needs transfusion of packed RBC to increase hemoglobin up to 12.
HOW MUCH BLOOD IS REQUIRED?Q#02
ANSWER:
Formula: wt. x (desired H b - actual
Hb) x 3.0 cc.
= 4 x (12 - 5) x 3 cc = 84 cc
Explanation:
PRBC means Hct of 66%, whole blood
Hct of 33%, transfusion of 2 cc RBC/kg increases Hb 1 gm/100 cc
2 cc RBC present in 3 cc of PRBC, so
3 cc/kg PRBC increases Hb 1 gm/100 cc, increases Hct 3.
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