The following Article is an update of the Official KB Health Checking Citrix Services with Advanced Monitors from the NetScaler Application Switch.

In this KB, Citrix Consulting explains how to use the Citrix Netscaler to Load Balance and HealthCheck a XenApp Environment.

However, the Official article is based on the Netscaler 6.1 kernel, and now all appliances are shipped with the 8.X so you could easily understand that some updates are needed ...