Proximal Tibia- 2 finger breadths below tibial tuberosity (1-3 cm) on medial, flat aspect of tibia
Distal Tibia- medial surface at junction of medial malleolus and shaft of tibia, posterior to to greater saphenous vein
Proximal humerus (adults only, use yellow needle) 
keep arm adducted and internally rotated (hand on bellybutton)
slide fingers up humerus until you feel a notch (surgical neck)
insert IO 1cm above surgical neck into the greater tubercle
immobilize arm or IO will displace (no abduction at shoulder)
Distal Femur (generally only in infants and children)
Pelvic ASIS
Sternum (Has highest flow rate of any location)
keep arm adducted and internally rotated (hand on bellybutton)
slide fingers up humerus until you feel a notch (surgical neck)
insert IO 1cm above surgical neck into the greater tubercle
immobilize arm or IO will displace (no abduction at shoulder)
Intraosseous access
Central venous catheterization
Peripheral IV placement
Vascular access
Arterial line
External jugular vein cannulation
Sheath introducer
Rapid infusion catheter