CBC
Urinalysis/Urine culture
Blood culture
CXR
Chem
LFTs
Lipase
VBG
Lactate
Coags
Consider:
Procalcitonin
DIC panel (fibrinogen, D-dimer, FDP)
T&S
CT head and/or [[LP]
TSH (thyroid storm)
Cosyntropin stim vs. random cortisol (adrenal insufficiency)
Pelvic exam (toxic shock syndrome, tampon)
Influenza rapid testing
CT Abd/Pelvis (abscess, other)
spine imaging (epidural abscess, other)
Procalcitonin
DIC panel (fibrinogen, D-dimer, FDP)
T&S
CT head and/or [[LP]
TSH (thyroid storm)
Cosyntropin stim vs. random cortisol (adrenal insufficiency)
Pelvic exam (toxic shock syndrome, tampon)
Influenza rapid testing
CT Abd/Pelvis (abscess, other)
spine imaging (epidural abscess, other)
Sepsis 
Adrenal Insufficiency
Tumor lysis syndrome
Salicylate Toxicity
Hemorrhagic shock
Anticholinergic Toxicity
Toxic shock syndrome
Neuroleptic Malignant Syndrome