CBC
Because anemia can precipitate a<unk> , must check for acute hemoglobin drop
Retic count (if aplastic<unk>  considered - rare in adults)
Should be >0.5%
Consider:
Chemistry / LFTs / lipase
If abdominal<unk> , may be cholecystitis, mesenteric ischemia, or perforation
T&S/T&C
Urine pregnancy
CXR
If cough, shortness of breath, or febrile
Because anemia can precipitate a<unk> , must check for acute hemoglobin drop
Should be >0.5%
Chemistry / LFTs / lipase
If abdominal<unk> , may be cholecystitis, mesenteric ischemia, or perforation
T&S/T&C
Urine pregnancy
CXR
If cough, shortness of breath, or febrile
If abdominal<unk> , may be cholecystitis, mesenteric ischemia, or perforation
If cough, shortness of breath, or febrile
Vaso-occlusive pain crisis
Acute arterial ischemia
Bony infarction
Crotaline envenomation
Dactylitis
Neurogenic shock
Avascular necrosis of femoral head
Heat stroke