1. The responsibility of the commanding officer for his or her command is absoluts, except when, and to the extent to which, he or she has been relieved therefrom by competent authority, or as provided otherwise in these regulations. The authority of the commanding officer is commensurate with his or her responsibility.
A carotid duplex scan is a simple and painless test that combines two types of ultrasound to look for blockages in your carotid arteries. An ultrasound is a type of scan that uses sound waves to produce a picture of the inside of your body.
A HIDA scan is an imaging test used to examine the gallbladder and the ducts leading into and out of the gallbladder. How it is done. 1  The patient receives an intravenous injection of a radioactive material called hydroxy iminodiacetic acid (HIDA).