|
Purpose: To calculate the number of packed
RBC units to transfuse to a patient.
|
|
Citations with documentation.
05.01.01
|
Sriram & Svirbely 1997
|
|
|
|
conversion to metric
|
enter
|
|
|
|
body weight in pounds
|
|
lbs. equals
|
77.27
|
kilograms
|
|
body height
in inches
|
|
inches equals
|
177.8
|
centimeters
|
|
hemoglobin in
g/L
|
|
g/L equals
|
12
|
g/dL
|
|
|
|
data
|
enter
|
|
|
patient's
age in years
|
|
years
|
|
|
patient's gender (enter M or F)
|
|
:-):-):-)
|
|
|
body weight in kilograms
|
|
kilograms
|
|
|
body height in centimeters
|
|
centimeters
|
|
|
current hemoglobin in g/dL
|
|
g/dL
|
|
|
rate of blood loss (enter A if acute, C if chronic)
|
|
:-):-):-)
|
|
|
estimated amount of acute blood loss in mL
|
|
mL
|
|
|
Is the default target Hgb of 10 g/dL OK? (Y or N)
|
|
:-):-):-)
|
|
|
desired target hemoglobin in g/dL
|
|
g/dL
|
|
|
Is the default blood product hematocrit of 60% OK? (Y or N)
|
|
:-):-):-)
|
|
|
:-):-):-)
|
|
:-):-):-)
|
|
|
Is the default blood product volume of 330 mL OK? (Y or N)
|
|
:-):-):-)
|
|
|
:-):-):-)
|
|
:-):-):-)
|
|
|
How many red cell products have been given in the last 24 hours?
|
|
:-):-):-)
|
|
|
How many platelet products have been given in the last 24 hours?
|
|
:-):-):-)
|
|
|
How many units of FFP have been given in the last 24 hours?
|
|
:-):-):-)
|
|
|
Is the patient at risk for fluid overload (congestive heart
failure, acute MI, etc.)? (Y or N)
|
|
:-):-):-)
|
|
|
|
|
calculated
|
results
|
|
|
data complete?
|
Yes
|
|
|
body surface
area
|
1.95
|
sq meters
|
|
|
patient
grouping
|
adults
|
|
|
estimated normal blood volume in mL
|
|
|
|
|
• by BSA,
method 1
|
5,181
|
mL
|
|
|
• by BSA,
method 2
|
5,339
|
mL
|
|
|
• by body
weight
|
5,082
|
mL
|
|
|
• by height
and weight
|
5,152
|
mL
|
|
|
|
|
Quick Estimate
|
|
|
units RBC needed
|
6
|
units
|
|
|
volume administered
|
1,560
|
mL
|
|
|
|
|
Exact Estimate
|
|
|
target hemoglobin
|
12
|
g/dL
|
|
|
estimated blood volume of patient before transfusion
|
4,181
|
mL
|
|
|
hemoglobin of
blood product
|
20
|
g/dL
|
|
|
volume of
blood product
|
330
|
mL
|
|
|
number of
units required
|
8.0
|
units
|
|
|
volume
administered
|
2,080
|
mL
|
|
|
|
|
Recommendations
|
|
|
Patient has undergone massive transfusion.
|
|
|
Patient requires platelet transfusions.
|
|
|
Patient requires FFP.
|
|
|
Split blood products before release.
|
|
|
Monitor patient for fluid overload.
|
|
|
|