Encephalitis<unk><unk>  changes - personality/behavior changes
Unlikely to have fevers, meningismus
High risk: same for meningitis, live near water
Meningitis
Usually other etiology for<unk>  but if negative workup do LP
Consider Ampicillin for listeria
Consider acyclovir for HSV
High risk: HIV, DM, malignancy, s/p ceftriaxone, prior neurosurgery, alcoholism, recent sinusitis
Pneumonia
False negative CXR ~15-20%
High morbidity
UTI
Very common etiology for<unk> in elderly
Straight cath UA
Resistant organisms likely, look up old urine culture + sensitivity
High risk: pelvic relaxation, indwelling foley >2wks (check for one!), BPH, history prostate cancer
Cholecystitis
May not have RUQ pain or GI symptoms
Ask about history of gallstones/US RUQ
Skin/Soft Tissue
Completely undress to examine
Often decubitus ulcers present
Old photos helpful
Consider fistula, osteomyelitis, necrotizing fasciitis
Old photos helpful
Altered mental status 
Sedation 
Extrapyramidal reaction
Tremor
Catatonia
Dizziness
Insomnia
Focal neurologic deficits