Lung Composite Allocation Score

Discover how your lung composite allocation score affects your lung transplant wait time at University Health.

Your Lung Composite Allocation Score

The United Network for Organ Sharing (UNOS) prioritizes lung transplant patients by lung composite allocation score (CAS). The United Network for Organ Sharing (UNOS) manages the national waiting list and calculates and assigns your CAS. UNOS uses your CAS to estimate the urgency of your illness (need for a donor lung) and your probability of first-year success after a lung transplant.

Calculating Your CAS

Your CAS considers your blood work, test results and disease diagnosis from your lung transplant evaluation and testing. You’ll get a CAS between 0 and 100. A higher score means you have a higher priority on the waiting list.

Updating Your CAS

Expect information updates and some testing every six months at a University Health transplant clinic or your nearest transplant outreach clinic. We are required to update the UNOS waiting list regularly.

Your CAS will adjust as your lung disease changes. If your condition worsens, your transplant coordinator will update the UNOS system. The result may be a higher CAS and a higher priority for transplant for you.

If you have questions about your CAS, talk to your transplant doctor about your specific situation.

Multiple Listing

You have the right to list yourself for a lung transplant at University Health and another center. View UNOS information about multiple listing.