By Nicole Rojas | n.rojas@latinospost.com | @nrojas0131 (staff@latinospost.com) | First Posted: Jan 25, 2013 05:12 PM EST

Robin Roberts returned to the studios of 'Good Morning America' on Thursday as a test run following her bone marrow transplant in September. According to the Huffington Post, the morning TV talk show host must undergo a period of readjustment to her previous work routine and see how her delicate immune system reacts.

Earlier this month, Roberts, who was undergoing treatment for a rare blood and bone marrow disorder called MDS, announced that she would return to 'GMA' in the following weeks. "I'm coming home," she declared in a video message. "We're talking now a matter of weeks, not months."

During the video message, Roberts said that her doctor had noted steady improvements in her health, including high blood count. After she announced that her last bone marrow test showed no abnormalities, Robert's colleagues applauded and cheered.

Along with her bone marrow transplant, Roberts had sensitive skin (due to chemical peels) and blurry vision. Her test run in the studios was set so Roberts could see how her body adjusted to any sort of stressor--including human contact, studio lights and waking up early.

"After I go through this dry run my doctors will sit down with me again and we'll evaluate where I am," she told her 'GMA' colleagues.

"I should be back sometime in February. Now I have a date in mind that's very personal and very important to me but I will ultimately listen to, of course, what my doctors say and, of course, we have to remember we're in the height of flue season. There's a lot of factors still," Roberts added.

On Thursday, ABC said that the anchor woke up at 3 a.m. and was in the Times Square studios by 5, Huffington Post reported.

In a tweet posted on Thursday, Roberts wrote, "Thankful Thursday. Took a "test drive" w/ my @GMA fam this morn. Felt great to be back in the studio," along with a photo of herself with one of her colleagues.

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