The correct answer is D. CBC, lipid panel, liver function tests, renal function, and quanterferon gold.

Multiple oral JAK inhibitors are approved for use in severe alopecia areata. JAK inhibitors can cause cytopenias, increased lipid levels, elevated liver enzymes, and reduced renal function. They are also immunosuppressive, and a test for tuberculosis is recommended at baseline.

Quantiferon gold test only is sufficient for some interleukin inhibitors used in the treatment of psoriasis. Fasting glucose, Hemoglobin A1C, lipid panel, and cortisol levels may be checked in long term use of predisone. Long term use of oral steroids is not recommended for this condition. CBC, CMP, urinanlysis, and antiphospholipid antibody panel may be checked as part of a workup for discoid lupus, which is not present in this case. Blood work is needed for the use of JAK inhibitors.

References: Kirchhof MG, Prajapati VH, Gooderham M, Hong CH, Lynde CW, Maari C, Turchin I, Papp KA. Practical Recommendations on Laboratory Monitoring in Patients with Atopic Dermatitis on Oral JAK Inhibitors. Dermatol Ther (Heidelb). 2024 Sep;14(9):2653-2668.