Anion Gap Calculation(Normal 8-16)
Sodium(Na):
Potassium(K):
Bicarbonate(B):
Chloride(CI):
Formula=(Na + k)-(B + C)
Blood Tranfusion
Desired Haemoglobin(D):
Actual Haemoglobin(A) :
Weight(W):
Formula=(D-A)*W*3
Blood Tranfusion(polycythemia)
Blood volume/kg:
Weight in kg :
Observed Hematocrit:
Desired Hematocrit:
Formula(Volume of exchange(ml))=(blood volume/kg * Weight in kg) * (Observed hematocrit - Desired hematocrit)/Observed Hematocrit
Reference:
Manual of neonatal care, sixth edition john. Cloherty et at 453
Burn Calculation
Percentage of burn:
Weight in kg :
Formula:Percentage of burn * weight *3
Conversion from kPa to mmHg
kPa:
Formula:7.5*kPa
Corrected Calculation
Measured Calcium(mmol/L):
Albumin(g/dl) :
Formula()mg/DL=Measured Calcium +(40-Albumin g/dl)/40
Refernce:
Ann Biol Clin(Paris).2009 Jul-Aug;67(4):411-8.doi:10.1684/abc.2009.0348. Corrected Calcium status underestimation in non-hypoalbuminemic patients and in hypercalcemic patients.
Corrected CSF WBC Count
Red Blood Cell count(RBC):
White Blood Cell count(WBC) :
CSF RBC :
CSF WBC(predicted)=CSF RBC*(Blood WBC/Blood RBC)
Reference:
Pediatrics.2003 Mar;111(3):525-8.Interpretationof TraumaticLimber punctures: who can go to hone? Mazor SS1,McNultJE, Roosevelt GE.
Corrected Sodium in DKA
Plasma Sodium(Na)(mmol/L):
Glucose(G)(mmol/L) :
Formula=Na+(0.4*(G-5.5))
Corrected QT Calculator
QT in second:
R-R interval(R) :
Formula= QT / Sqrt R
Creatine Clearance
Creatinine in urinary sample(Ucr):
Urine flow rate(V) :
Plasma Creatinine(Pcr) :
Formula= (Ucr*v)/Pcr
Fractional Excretion of Sodium Calculation
Urinary Sodium(UNa) in mmol/L:
Plasma Creatinine(Pcr) in mmol/L :
Plasma Sodium(PNa) in mmol/L :
Urinary Creatinine(Ucr) in mmol/L :
Formula=(UNa * PCr) / (PNa * UCr) * 100
Fresh Frozen Plasma Transfusion
Weight(W) in kg:
Formula=W * 20
Intravenous Fluid Calculation
(No cardiac/renal compromise)
Child Weight(W) in kg:
Formula=10 kgs-100ml/day
From 10 kgs to 20 kgs-50ml/kg/day
20 kgs above 20 ml/kg
Divide this number by 24 for final answer
Osmolality
Sodium:
Potassium:
Glucose:
Urea:
Formula=(2 * (sodium+potassium)+glcose+urea)
Platelets Concentrate(over 30 min)
Weight(W):
Formula=W * 20
Renal Failur Index Calculator
Urine Sodium(UNa) in mEq/L:
Serum Creatinine(SCr) in mEq/L:
Urine Creatinine(UCr) in mEq/L:
Formula=UNA * SCr/UCr
Volume of Blood Exchange
Blood Volume/kg:
Weight in Kg:
Observed Hematocrit:
Desired Hematocrit:
Formula(Volume of exchange(ml))=(blood volume/kg * Weight in kg) * (Observed hematocrit - Desired hematocrit)/Observed Hematocrit
Reference:
Manual of neonatal care, sixth edition john. Cloherty et at 453