What are these coloured numbers in the basket icon in the ribbon?

The basket in the ribbon may display 2 numbers, one in a red dot, the other one in an orange dot.

The red dot indicates how many test requests there are currently for this patient (in this example: 1). 

The ribbon then also indicates which tests have been requested by displaying a red exclamation mark on the test icon in the ribbon.

The orange dot indicates the number of outstanding test requests in all patients (in this example: 6 patients).  Click on the small arrow to get a list of these pending outcome requests.