Intended audience: clinical services coord - csc

The final allocation algorithm steps are to exclude (or filter out) recipients that meet certain conditions.

Donor acceptability rules

Recipients (with their transplant team’s advice) may decide to specify donor acceptability criteria: donor attributes that the recipient cannot accept.

The system automatically excludes recipients if the donor falls outside any one of the specified criteria.

Recipient’s Acceptability Criteria

Donor Condition

Action

Note on Allocation Recommendation

Acceptable Minimum Age = x

Age < x

Exclude Recipient

Minimum age rule

Acceptable Maximum Age = x

Age > x

Exclude Recipient

Maximum age rule

Acceptable Minimum Weight = x

Weight < x

Exclude Recipient

Minimum weight rule

Acceptable Maximum Weight = x

Weight > x

Exclude Recipient

Maximum weight rule

Acceptable Minimum Height = x

Height < x

Exclude Recipient

Minimum height rule

Acceptable Maximum Height = x

Height > x

Exclude Recipient

Maximum height rule

Accept HCV Ab+ Donor = N

Donor is HCV Ab+

Exclude Recipient

HCVAb Exclusion rule – HCVAb.1

Accept HCV NAT+ Donor = N

Donor is HCV NAT+

 

Exclude Recipient

HCVNat Exclusion rule – HCVNat.1

Accept HepB Core Ab+ Donor = N

Donor is HepB Core Ab+

Exclude Recipient

HepBCoreAb Exclusion rule – HepBCoreAb.1

Donor acceptability criteria such as blood type and HCV are also used in the early steps in the allocation algorithm sequence when selecting potential recipients for a donated organ.

Transplant program filter rules

Transplant programs set policies to exclude their recipients from allocation recommendations if the donor meets certain conditions (for example, exclude if donor is over/under a certain age). Ontario’s transplant programs have different exclusion practices specific to each organ type.

The exclusion is noted on the allocation recommendation listing.

If required, you can override transplant program exclusion filters when you run an allocation recommendation.

See related topics