Final answer:
The most concerning data would be a CD4 T-cell count below 200 cells/μl, indicating AIDS. The presented patient has 700 CD4 T cells/μl and no apparent illness, indicating Stage 1 HIV infection.
Step-by-step explanation:
The most concerning assessment data for a patient diagnosed with HIV would be a CD4 T-cell count that is critically low, specifically below 200 cells/μl of blood, as this indicates the progression to Acquired Immunodeficiency Syndrome (AIDS). Opportunistic infections, which are more common in patients with severely compromised immune systems, would also be a critical concern. However, in the case mentioned, the patient's CD4 T-cell count is 700 cells/μl and she does not display any apparent illness, suggesting her HIV infection is in Stage 1: Acute HIV infection, where CD4 T-cell counts are more than 500 cells/μl and the patient has a large amount of virus in their blood but might not yet display severe symptoms.