Based on Felicia’s history and physical examination findings, you decide to collect a minimum database consisting of a CBC, serum chemistry panel, and urinalysis.
These are the notable findings from your CBC, serum chemistry panel, T4 determination, and urinalysis.
Stress leukogram, mildly elevated PCV
Serum chemistry panel
T4 level is 1.2 µg/dl (reference range: 1-4 µg/dl)
What is the most likely diagnosis?
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