Medical kit

Carry on baggage
Restrictions apply
Checked baggage
Yes

Medical kits must be carried by health care professionals. 

Rounded or pointed scissors are only permitted when the blades (measured from the fulcrum) are 6 cm (2.4 in) or less in length. 

At domestic/international (non-U.S.) scissors can be permitted over 6 cm if the passenger states they are medically necessary.

Knives with a blade 6 cm (2.4 in) or less are permitted at Domestic and International (non-U.S.) checkpoints.   

Important:

Knives are not permitted at U.S. Transborder checkpoints.