50kg (small adult)

Critical Care Quick Reference Group

Weight 50 kg
Age small adult
Broselow Color NA

Normal Vital Signs

Heart Rate 60 - 100 bpm
Respiratory Rate 10 - 20 rpm
Systolic BP 90 - 140 mmHg



Intubation

Medication Dose Calculation
Pretreatment
Lidocaine 75 mg 1.5 mg/kg[1]
Fentanyl 50 mcg 1 mcg/kg
RSI
Etomidate 15 mg 0.3 mg/kg
Succinylcholine 75 mg 1.5 mg/kg
Midazolam (Versed) 2 mg 0.1 mg/kg
(max 2 mg per dose)
Ketamine 100 mg 2 mg/kg
Vecuronium 5 mg 0.1 mg/kg
Rocuronium 50 mg 1 mg/kg
Equipment
ET Tube (cuffed) 8 ±0.5 age/4+3
Blade 3-4 Miller or MAC
cm to teeth 23 3 x ETT size

Pulseless Arrest

Medication Dose Calculation
Defibrilation 200 J 2 J/kg
(max 200)
Epinephrine (1:10,000) 0.5 mg 0.01 mg/kg
(max 1 mg)
Amiodarone load (without pulse) 250 mg 5 mg/kg
(max 300)
Lidocaine 50 mg 1 mg/kg
Lidocaine Infusion 2500 mcg/min 50 mcg/kg/min
Magnesium sulfate 2000 mg 50 mg/kg
(max 2000 mg)
CalCl (100mg/mL) 1000 20 mg/kg
(max 1000 mg)
Sodium Bicarbonate (8.4%) 50mL 1 mL/kg
(max 50 mL)

Cardiac with Pulse

Medication Dose Calculation
Adenosine 5 mg 0.1 mg/kg
(max 6 mg)
Adenosine Repeat 10 mg 0.2 mg/kg
(max 12 mg)
Amiodarone load (with pulse) 150 mg 5 mg/kg
Amiodarone 2nd/3rd dose repeat loading dose up to total 3 times 15 mg/kg max
Atropine 1 mg 0.02 mg/kg
(max 1 mg)
Cardioversion (sync) 100J, 200J, 300J, 360J Increase Joules with each cardioversion
Procainamide 750 mg 15 mg/kg
(max 1500 mg)
Diltiazem 12.5 mg 0.25 mg/kg
Esmolol 5000 mcg/min 100 mcg/kg/min
Magnesium sulfate 2000 mg 50 mg/kg
Nitroglycerin drip 2.5 mcg 0.05 mcg/kg/min
Glucagon 1.25 mg 0.025 mg/kg

Hypoglycemia

Medication Dose Calculation
D50W 50 mL (1 amp) 1 mL/kg
D25W 100 mL 2 mL/kg
D10 W 125 mL 2.5 mL/kg
Glucagon 1.25 mg 0.025 mg/kg

Vasopressors

Medication IV Dose (mcg/kg/min) Concentration
Norepinephrine (Levophed) 0.1-2 mcg/kg/min 8mg in 500mL D5W
Dopamine 2-20 mcg/kg/min 400mg in 250 D5W
Dobutamine 2-20 mcg/kg/min 250mg in 250 mg D5W
Epinephrine 0.1-1 mcg/kg/min 1mg in 250 D5W

Sedation

Medication Dose Calculation
Lorazepam (Ativan) 2 mg 0.05 mg/kg
(max 2 mg per dose)
Morphine 5 mg 0.1 mg/kg
Fenatnyl 50 mcg 1 mcg/kg
Ketamine 50 mg 1 mg/kg
Midazolam (Versed) 2 mg 0.1 mg/kg
(max 2 mg per dose)
Propofol IV (initial) 50 mg 1 mg/kg
Propofol (drip) 2500 mcg 50 mcg/kg/min

Seizure and CNS

Medication Dose Calculation
Lorazepam (Ativan) 2 mg 0.05 mg/kg
(max 2 mg per dose)
Fosphenytoin (PE = phenytoin equivalent) 1000 PE 20 PE/kg
Phenytoin (Dilantin) 1000 mg 20 mg/kg
Phenobarbitol 500 mg 10 mg/kg
Diazepam (Valium) rectal 5 mg 0.1 mg/kg every 2 min
Levetiracetam (Keppra) 1000 mg 20 mg/kg
Mannitol 50 g 1 g/kg
Hypoglycemia IV dextrose see glucose table

Trauma

Medication Dose Calculation
Normal saline 0.9% bolus 2L
PRBCs (1u=250cc) 1 unit
Chest tube (fr) 42
Central line
NG tube (fr) 18

Equipment

Medication Dose Calculation
Chest tube (fr) 36
Central line
NG tube (fr) 18

Fluids

Medication Dose Calculation
Normal saline 0.9% bolus 1L 20 mL/kg
Maintenance 90cc/hr 4-2-1 Rule
PRBCs (1u=250cc) 1 unit

See Also

Quick Reference Groups[2]

Adult
Category Weight
Large adult 100kg
ADULT 70kg
Small adult 50kg
Pediatric
Broslow Color Weight (Age)
Green 35kg (10yr)
Orange 25kg (8yr)
Blue 20kg (6yr)
White 15kg (4yr)
Yellow 12kg (2yr)
Purple 10kg (1yr)
Red 8kg (6mo)
Pink 6kg (4mo)
Gray 5kg (2mo)
3.5kg (newborn)
Preemie 2kg (preemie)

References

  1. Robinson N, Clancy M. Emerg Med J. 2001 Nov; 18(6): 453–457. In patients with head injury undergoing rapid sequence intubation, does pretreatment with intravenous lignocaine/lidocaine lead to an improved neurological outcome? A review of the literature doi:10.1136/emj.18.6.453 PMCID:PMC1725712
  2. Unless otherwise noted, all pediatric dosing per AAP guidelines: AAP Committee on Drugs. Drugs for Pediatric Emergencies full text