The mass of a liquid and solid substance compared with the mass of an equal volume of water defines:

A 16-year-old male presents with a gunshot wound to the right upper arm. The wound is spurting bright red blood. You should FIRST:

A) hold direct pressure to the site. B) take BSI precautions. C) apply a dressing. D) apply a tourniquet.

A PA cranium projection demonstrating the petrous ridges superior to the supraorbital margins

a. was obtained with the patient's chin tucked more than the required amount. b. was obtained with the OML perpendicular to the IR. c. will also demonstrate the internal acoustic meatus. d. will require the patient to increase the amount the chin is tucked to obtain an op-timal image.