DANB RHS Exam Questions Correct Answers New Update (A Pass)

DANB RHS Exam Questions Correct Answers New Update (A Pass) Storing unexposed radiographic film in high humidity conditions may cause - Answer- Film fog The shorter the wavelength of electromagnetic radiation, the greater the - Answer- Energy Which of the following radiograph techniques is recommended for a patient with a shallow palate? - Answer- Bisecting Which of the following landmarks are located by the midline of the mandible? - Answer- Genial tubercles Which of the following should be labeled on the radiographic mount prior to film duplication? - Answer- Right and left sides When exposing radiographs, what is the minimum distance the operator should stand from the tube head? - Answer- 6 feet Which of the following may cause film fogging? - Answer- Using expired film A panoramic image appears to have a "reverse smile" when the - Answer- Frankfort plane is angled upward To assist the patient in controlling the gag reflex, the dental assistant should - Answer- Use a distraction technique Somatic effects of radiation do NOT have damaging effects on - Answer- Offspring When the tubehead drifts, the first step the dental assistant should take is to - Answer- Stop using the machine What is the primary advantage in using digital radiography? - Answer- Reduces the radiation to patient The best way to prevent cross-contamination from an exposed film packet is by - Answer- Using individual barrier envelopes When radiographs are mounted with the embossed dot appearing outward, this is known as - Answer- Facial mounting While exposing x-ray films, radiation deflecting off the patient's head is called - Answer- Scatter radiation Which of the following is a disposable intraoral x-ray film holder device? - Answer- Stabe® The position-indicating device (PID) shape that most effectively reduces patient exposure to radiation is - Answer- Rectangular Which of the following is most likely to cause a stored radiograph to turn brown over time? - Answer- Underwashing The annual maximum accumulated dose (MAD) of radiation for dental assistant is based on which of the following calculations? - Answer- Age minus 18 times 5 rems/year The amount of radiation and exposure time needed to produce a diagnostic radiograph is best determined by - Answer- Film speed Which of the following can be used to measure excessive occupational exposure? - Answer- Film badge The endentulous radiographic series may include all of the following EXCEPT - Answer- Bitewings Emulsion damage to a film is caused by - Answer- Improper handling of the film When exposing a posterior periapical radiograph on an adult patient with no intraoral restrictions, which size film should be used? - Answer- 2 Dental healthcare personnel who are pregnant can expose radiographs during the - Answer- Entire pregnancy The median palatal suture is visible on which of the following radiographs? - Answer- Maxillary anterior periapical Which of the following is a DISADVANTAGE of panoramic radiographs? - Answer- Higher cost of equipment A panoramic radiograph with a dark shadow over the apices of the maxillary teeth may be caused by the patient - Answer- Not placing the tongue against the palate Personnel monitoring for radiation exposure is done by - Answer- Wearing a dosimeter Which of the following is the most effective method of reducing patient exposure to x-radiation? - Answer- Fast film When taking a panoramic radiograph, the patient's head should be oriented - Answer- With the midsagittal plane perpendicular to the floor Inside the film packet, the film is wrapped with a/an - Answer- Black paper sheet. Duplicating film is coated with - Answer- One-sided emulsion Which of the following could cause a straight black line/border to appear on a radiograph? - Answer- Fixer solution level was low Using the ALARA concept as a guideline for radiographs includes all of the following EXCEPT - Answer- Using a circular PID