Page 275 - 2023 SMOG Digital

FORMS

USEFUL CALCULATIONS

PEDIATRIC FORMULAS:
• ETT Size = (Age/4)+4 (Age divided by 4 plus 4)
• ETT Depth = 3 x ETT Size (Endotracheal)
• Weight in kg (>1 year) = (Age (years) x 2) + 8
• Systolic Blood Pressure minimum = 70 + [2 x Age (years)]
MEDICATION FORMULAS:
• mcg/kg/min (micrograms/kilogram/minute) = [16.7 X Drug Concentration (mg/ml) x infusion
rate (ml/h)] Weight (kg).
• INFUSION RATE (mL/h) = [Desired mcg/kg/min x Weight (kg) x 60]/Drug concentration (mcg/mL)
HEMODYNAMIC FORMULAS:
• MAP: Mean Arterial Pressure = [(2 x DBP) + SBP]/3.
• SBP = (Systolic Blood Pressure)
• DBP = (Diastolic Blood pressure)
• / = (Divided by)
• PULSE PRESSURE: SBP – DBP or (Systolic Blood Pressure minus Diastolic Blood pressure).
• Cerebral Profusion Pressure (CPP): MAP-ICP=CPP
• ICP= (Intracranial Pressure)
• Ideal CPP=>65 While ICP cannot often be measured during flights; an assumption that patients with
TBI have an ICP of 15-20 will allow hemodynamic optimization in these patients to ensure adequate CPP.
Common Conversions:
• lb = kg x 2.2 or kg = lbs x 0.45
• Fahrenheit = (Celsius x 1.8) + 32 or Celsius = (Fahrenheit -32) x 5/9
•1tsp = 5mL
• 1tbsp = 15mL
• 1oz = 30mL
• 1g = 1,000mg
• 1mg = 1,000mcg
• 1g = 10,000mcg

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