Calculations for Kids...

An essential part of the CT3 - Paediatric Block, most likely to appear in part C, but could easily be part of a stem in Part B.

WETFLAG Calculation

W        Weight           1-12months (0.5 x age in  months) + 4

                                    1-5yrs (2 x age in yrs) + 8

                                    6-12yrs (3 x age in yrs) + 7

E          Electricity        4 Joules / Kg/ biphasic

T          Tube ETT      Internal Diameter   (age/4 + 4) =    --- mm

Length           Oropharangeal Tube (age /2 +12) = -- cm

                                                Nasopharyngeal tube (age /2+ 15) = --- cm 

F          Fluids             Medical / cardiac arrest – 20 ml/ kg

                        Trauma cases initial Bolus 10 ml/ kg, then 2^nd 10 ml /kg

L          Lorazepam   0.1 mg / Kg  IV/ IO

A         Adrenaline    0.1 ml/kg of 1:10, 000 = 10mcg/kg

G         Glucose         2ml / kg of 10% dextrose 

Utilised on both APLS and EPLS - again especially relevant to CT3 year.

For a day to day basis there are some excellent apps for the smart phone enabled. Certainly for those with an iPhone I would recommend Paeds ED.

• After inputing the gender plus known weight or age it gives you resus data plus key doses of common medications.  Invaluable at 2am when a sick kid rocks up and your brain is not at it's mathematical peak.

Paracetamol:

By far the commonest paediatric prescription I write. Dosed at 15mg/kg

The easy way:

= weight (kg) x 10 + half again                 

for 30 Kg = 30 x 10 = 300 + 150 = 450 mg