LAS calculator

This is a sample calculator to show how the lung allocation score (LAS) is established. It uses the same formula as the one transplant hospitals use to enter data on patients on the waiting list for a lung transplant.

Learn about LAS

LAS results should not be considered definitive; they are merely a snapshot based upon the values entered and can vary daily.

Date of birth * (mm/dd/yyyy)

Height *
ft in
cm

Weight *
lbs
kg

Lung diagnosis code *

Functional status

Assisted ventilation

Requires supplemental O₂

Amount * L/min %

Pulmonary artery systolic pressure (mmHg)

Mean pulmonary artery pressure (mmHg)

Cardiac index (CI) (L/min/m²)

6-minute walk distance (feet)

Total bilirubin (mg/dL)

Serum creatinine (mg/dL)

If using a central venous test value for PCO₂ subtract 6 mmHg before entering the value.

PCO₂ (mmHg) Current Highest Lowest

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Organ Procurement and Transplantation Network

LAS calculator