History of Present Illness:
A female in her 60s with a history of DM presents to the ED for 3 days of inner right thigh pain and redness plus vaginal discharge. Last sexual intercourse was 7 days ago with stable partner. Pain worse when sitting. She denies fever but has had occasional chills
Vital Signs & Physical Exam:
Vital signs are normal except for a temperature of 101.4. BP and pulse are normal
Physical exam is otherwise normal except for a 2% TBSA area of redness and tenderness to the upper inner
Initial Diagnostic Testing:
CBC: WBC and bands both elevated at 15.
Chem: Glucose 400, lactate and creatinine both 2.2, sodium 131mEq/L
What additional is most critical?