meld_NA {amscorer}

MELD-Na (UNOS/OPTN) Score Calculator

Description

Calculates the MELD-Na score for patients greater than or equal to 12 years, incorporating serum sodium levels. This score is used for assessing the severity of end-stage liver disease for transplant planning. Note that since January 2016, the MELD score calculation includes the serum sodium level. For more information, visit https://www.mdcalc.com/calc/78/meld-score-model-end-stage-liver-disease-12-older#evidence.

Usage

meld_NA(my_data)

Arguments

my_data

A data frame containing columns 'Creatinine', 'Bilirubin', 'INR', 'Hemodialysis', and 'Sodium'.

Details

The function calculates the MELD-Na score based on the following parameters:

• Bilirubin: Numeric value representing the bilirubin level (mg/dL).

• INR: Numeric value representing the International Normalized Ratio (INR).

• Creatinine: Numeric value representing the creatinine level (mg/dL).

• Hemodialysis: Logical value indicating if the patient is on hemodialysis (0 = No, 1 = Yes).

• Sodium: Numeric value representing the serum sodium level (mEq/L).

Value

A modified data frame (my_data) with the calculated MELD-Na score and risk classification of three-month mortality. Returns NA for cases with missing values.

References

Kamath et al. (2001) doi:10.1053/jhep.2001.22172

Examples

my_data <- data.frame(
  Creatinine = c(1.2, 2.5, 3),
  Bilirubin = c(0.5, 1.0, 2.1),
  INR = c(1.1, 1.5, 1.8),
  Sodium = c(130, 140, 125),
  Hemodialysis = c(0, 1, 0)
)
meld_NA(my_data)