The probability of death following acetaminophen poisoning can be estimated from clinical and laboratory data.
(1) grade of encephalopathy
(2) prothrombin time
(3) serum creatinine
(4) white blood cell count
(5) serum potassium
grade of encephalopathy
2.248 * (grade of encephalopathy)
0.0117 * (prothrombin time in seconds)
0.0064 * (serum creatinine in µmol/L)
white blood cell count
0.045 * (WBC count as 10^9/L)
0 if potassium <= 5.5 mmol/L; 1.4623 if potassium > 5.5 mmol/L
= SUM(points for all of the parameters) - 13.241
If the equation is rearranged:
probability of death =
= 1 / (1 + EXP((-1) * X))
To read more or access our algorithms and calculators, please log in or register.
Purpose: To estimate the probability of death in patients with acetaminophen induced hepatic failure based on clinical and laboratory data.
Objective: clinical diagnosis, including family history for genetics, laboratory tests, severity, prognosis, stage
ICD-10: T39.1, K71.9,