You can now sign up for email alert of changes made to the Test Guide. This will include addition of new tests, changes in collection tubes, collection and packaging instructions, turnaround time and clinical use. To subscribe, just open Test Guide from the quick links below, left click on 'Main' (top left hand corner) and choose 'Subscribe to Mailing List' from the drop down list. Should you wish to unsubscribe, just click the unsubscribe link at the bottom of the email alert sent.