Which area of concern or fear would MOST likely be the main focus for a teenage patient having surgery?

A 64-year-old female is alert and oriented, in moderate respiratory distress, and complaining of chest pain. She describes an acute onset of right-sided chest pain that radiates across her chest. Physical examination reveals cold, diaphoretic skin; lung sounds with crackles bilaterally; JVD; and peripheral edema. Medical history includes hypertension, prior myocardial infarction, and heart failure. HR = 128, BP = 86/56, RR = 26, SaO2 = 92%. Which of the following is appropriate in the prehospital treatment of this patient?

A) Dopamine B) Nitroglycerin C) Amiodarone D) Morphine

Which of these statements regarding the focal trough is false?

A) Its shape varies from one manufacturer to another. B) It is where structures will be imaged the sharpest. C) It is two dimensional. D) It is used to determine where to position the dental arches.