HESI DENTAL HYGIENE LATEST
EXAM
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
where does thermionic emission occur in the dental x-ray tube? - ANSWERS-
negatively-charged cathode
QUESTION 2
which radiographic finding appears as round radiopacities superimposed over or
near the apices of the mand. post. teeth? - ANSWERS-mandibular tori
QUESTION 3
what is the most common cause for a clear or blank film? - ANSWERS-no
exposure to x-radiation
QUESTION 4
each of the following is an indication for periapical projections EXCEPT one,
which one? - ANSWERS-incipient interproximal caries
END OF
PAGE
1
, HESI DENTAL HYGIENE LATEST
EXAM
QUESTION 5
which position indicating device (PID) provides the best radiation protection for
the pt? - ANSWERS-rectangular
QUESTION 6
when the RDH becomes the pt for radiographic exposures, where should the
radiation-monitoring badge be placed? - ANSWERS-in a radiation-safe area
QUESTION 7
which is an advantage of using intensifying screens in extraoral radiography? -
ANSWERS-reduces pt exposure to radiation
QUESTION 8
what is the typical range of kvp setting on a dental x-ray machine? - ANSWERS-
65-100
END OF
PAGE
2
, HESI DENTAL HYGIENE LATEST
EXAM
QUESTION 9
which is the purpose of insulating oil inside the dental x-ray machine? -
ANSWERS-absorbs heat produced
QUESTION 10
each of the following is an ex: of electromagnetic radiation EXCEPT one, which
one? - ANSWERS-Alpha particles
QUESTION 11
which technique yields severe root damage when using a magnetorestrictive
scaler? - ANSWERS-applying firm lateral pressure
QUESTION 12
according to the ADHA code of ethics, providing pro bono service fulfills a
responsibility to - ANSWERS-the community & society
END OF
PAGE
3
, HESI DENTAL HYGIENE LATEST
EXAM
QUESTION 13
which element of informed consent is breached when a health care provider
neglects to explain the possible consequences of rejecting tx? - ANSWERS-
disclosure
QUESTION 14
which criteria validates creditable research? - ANSWERS-data is published w/in
last 3-5 years
QUESTION 15
which action does a positive spore test warrant? - ANSWERS-take sterilizer out of
operation & retest
QUESTION 16
END OF
PAGE
4
EXAM
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
where does thermionic emission occur in the dental x-ray tube? - ANSWERS-
negatively-charged cathode
QUESTION 2
which radiographic finding appears as round radiopacities superimposed over or
near the apices of the mand. post. teeth? - ANSWERS-mandibular tori
QUESTION 3
what is the most common cause for a clear or blank film? - ANSWERS-no
exposure to x-radiation
QUESTION 4
each of the following is an indication for periapical projections EXCEPT one,
which one? - ANSWERS-incipient interproximal caries
END OF
PAGE
1
, HESI DENTAL HYGIENE LATEST
EXAM
QUESTION 5
which position indicating device (PID) provides the best radiation protection for
the pt? - ANSWERS-rectangular
QUESTION 6
when the RDH becomes the pt for radiographic exposures, where should the
radiation-monitoring badge be placed? - ANSWERS-in a radiation-safe area
QUESTION 7
which is an advantage of using intensifying screens in extraoral radiography? -
ANSWERS-reduces pt exposure to radiation
QUESTION 8
what is the typical range of kvp setting on a dental x-ray machine? - ANSWERS-
65-100
END OF
PAGE
2
, HESI DENTAL HYGIENE LATEST
EXAM
QUESTION 9
which is the purpose of insulating oil inside the dental x-ray machine? -
ANSWERS-absorbs heat produced
QUESTION 10
each of the following is an ex: of electromagnetic radiation EXCEPT one, which
one? - ANSWERS-Alpha particles
QUESTION 11
which technique yields severe root damage when using a magnetorestrictive
scaler? - ANSWERS-applying firm lateral pressure
QUESTION 12
according to the ADHA code of ethics, providing pro bono service fulfills a
responsibility to - ANSWERS-the community & society
END OF
PAGE
3
, HESI DENTAL HYGIENE LATEST
EXAM
QUESTION 13
which element of informed consent is breached when a health care provider
neglects to explain the possible consequences of rejecting tx? - ANSWERS-
disclosure
QUESTION 14
which criteria validates creditable research? - ANSWERS-data is published w/in
last 3-5 years
QUESTION 15
which action does a positive spore test warrant? - ANSWERS-take sterilizer out of
operation & retest
QUESTION 16
END OF
PAGE
4
