Configuring an F5 iRule to Check for Multiple Server IPs/Ports

Hi there ... I have a scenario where client http requests are load-balanced across 2 members of the pool. Currently, a pool member is checked based on a single port number e.g. 5000. However, I need the member to be checked based on the availability of 2 ports i.e. these 2 ports must be responsive before traffic is redirected to a member. In other words, each member run 2 apps on 2 separate ports and both apps must be running for it to accept traffic.

Can be this done and how at a conceptual level. I should be able to figure our the details.

Thanks in advance.