What does a diamond or herringbone pattern on the processed radiograph indicate?
underexposed film
overdeveloped film
expired film
reversed film
reversed film
Rationale: reversed film – When a film is reversed in the mouth, the lead shield, which has a herringbone pattern, is visible. The smooth, flat portion of the radiograph must face the outside of the mouth to prevent this herringbone effect from occurring.
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You are interviewing a patient whom you suspect has an acute coronary syndrome. Which question is most appropriate initially?
A) "Are you having any pain in your chest?" B) "Are you having any chest discomfort?" C) "Does it hurt when I press on your chest?" D) "Does your chest hurt when you breathe?"
Which statement demonstrates that the EMT has a proper understanding of basic operations at the scene of a hazardous materials emergency?
A) "Life or health of the EMS providers should never be risked if the threat is only to the environment." B) "It is critical to remove the patients as quickly as possible from the incident site." C) "If you cannot see or smell a chemical, the chance of one being present is very low." D) "Identification of the material is not important, since the approach is the same for all materials."
Which of the following devices or methods would be appropriate to provide sufficient humidity for an intubated patient with an uncuffed endotracheal tube who has thick, bloody secretions?
a. Heat and moisture exchanger b. Heated humidifier c. Heated humidifier with a heat and mois-ture exchanger d. Systemic hydration
What describes the legal restrictions and controls for the practice of dentistry?
a. Expanded functions b. ADA c. Dental Practice Act d. None of the above