Infection Control CDC exam questions
with correct solutions
In |the |text |the |acronym |DHCP |is |used |- |what |does |it |reference? |- |ANSWERS✔✔
|refers |to |all |paid |and |unpaid |personnel |in |the |dental |health-care |setting |who |might
|be |occupationally |exposed |to |infectious |materials
ie |dentist, |dental |hygienest, |dental |assistant, |front |desk
How |are |pathogenic |microorganisms |like |HBV |transmitted |in |the |dental |setting? |-
|ANSWERS✔✔ |1) |direct |contact |with |blood, |oral |fluids, |or |other |patient |materials; |2)
|indirect |contact |with |contaminated |objects |(e.g., |instruments, |equipment, |or
|environmental |surfaces); |3) |contact |of |conjunctival, |nasal, |or |oral |mucosa |with
droplets |(e.g., |spatter) |containing |microorganisms |generated |from |an |infected |person
|and |propelled |a |short |distance |(e.g., |by |coughing, |sneezing, |or |talking); |and |4)
|inhalation |of |air- |borne |microorganisms |that |can |remain |suspended |in |the |air |for
|long |periods
What |is |the |difference |between |universal |precautions |and |standard |precautions |in
|the |clinical |dental |practice? |- |ANSWERS✔✔ |Standard |precautions |apply |to |contact
|with |1) |blood; |2) |all |body |fluids, |secretions, |and |excretions |(except |sweat), |regard-
|less |of |whether |they |contain |blood; |3) |nonintact |skin; |and |4) |mucous |membranes.
|Saliva |has |always |been |considered |a |potentially |infectious |material |in |dental
|infection |control; |thus, |no |operational |difference |exists |in |clinical |dental |practice
|between |universal |precautions |and |standard |precautions.
In |the |text |the |acronym |OPIM |is |used |- |what |does |it |reference? |- |ANSWERS✔✔
|Other |potentially |infectious |materials. |OSHA |term |that |refers |to |1) |body |fluids
|including |semen, |vaginal |secretions, |cerebrospinal |fluid, |synovial |fluid, |pleural |fluid,
|pericardial |fluid, |peritoneal |fluid, |amniotic |fluid, |saliva |in |dental |procedures; |any
|body |fluid |visibly |contaminated |with |blood; |and |all |body |fluids |in |situations |where
|differentiating |between |body |fluids |is |difficult |or |impossible; |2) |any |unfixed |tissue
|or |organ |(other |than |intact |skin) |from |a |human |(living |or |dead); |and |3) |HIV-
containing |cell |or |tissue |cultures, |organ |cultures; |HIV- |or |HBV-containing |culture
|medium |or |other |solutions; |and |blood, |organs, |or |other |tissues |from |experimen- |tal
|animals |infected |with |HIV |or |HBV.
, Can |an |individual |that |is |a |carrier |of |Hepatitis |B |work |as |a |dental |receptionist?
|Why |or |why |not? |- |ANSWERS✔✔ |Yes, |as |that |position |does |not |perform |exposure-
prone |procedures.
Can |an |individual |with |Hepatitis |C |work |as |a |dental |hygienist?Why |or |why |not? |-
|ANSWERS✔✔ |No |restrictions |on |professional |activity.HCV-positive |health-care
|personnel |should |follow |aseptic |technique |and |standard |precautions.
Given |the |scenario |that |you |have |chicken |pox, |when |can |you |return |to |work |as |a
|dental |hygienist? |- |ANSWERS✔✔ |From |tenth |day |after |first |exposure |through
|twenty-first |day |(twenty-eighth |day |if |varicella-zoster |immune |globulin |[VZIG]
|administered) |after |last |exposure.
How |long |is |your |dentist-employer |required |to |keep |your |confidential |medically
|related |information? |- |ANSWERS✔✔ |at |least |the |duration |of |employment |plus |30
|years
What |body |fluid |contains |the |greatest |proportion |of |HBV |infectious |particle |titers
|and |is |the |most |critical |vehicle |of |transmission |in |the |health-care |setting? |-
|ANSWERS✔✔ |bloodand |blood-contaminated |saliva
How |long |can |HBV |survive |in |dried |blood |at |room |temperature |on |an |environmental
|surface? |- |ANSWERS✔✔ |less |than |or |equal |to |1 |week
Given |the |scenario |that |you |received |the |primary |vaccine |series |for |HBV, |what
|should |you |do |if |you |did |not |develop |an |adequate |antibody |response? |-
|ANSWERS✔✔ |complete |a |second |3-dose |vaccine |series |or |be |evaluated |to |determine
|if |they |are |HBsAg-positive. |If |no |antibody |response |occurs |after |the |second |series,
|testing |for |HBsAg |should |be |performed
Given |the |scenario |that |you |received |the |primary |vaccine |series |for |HBV, |what
|should |you |do |if |you |are |a |nonresponder |to |the |vaccination? |- |ANSWERS✔✔
|Nonresponders |to |vaccination |who |are |HBsAg-negative |should |be |considered
|susceptible |to |HBV |infection |and |should |be |counseled |regard- |ing |precautions |to
|prevent |HBV |infection |and |the |need |to |obtain |HBIG |prophylaxis |for |any |known |or
|probable |parenteral |exposure |to |HBsAg-positive |blood.
with correct solutions
In |the |text |the |acronym |DHCP |is |used |- |what |does |it |reference? |- |ANSWERS✔✔
|refers |to |all |paid |and |unpaid |personnel |in |the |dental |health-care |setting |who |might
|be |occupationally |exposed |to |infectious |materials
ie |dentist, |dental |hygienest, |dental |assistant, |front |desk
How |are |pathogenic |microorganisms |like |HBV |transmitted |in |the |dental |setting? |-
|ANSWERS✔✔ |1) |direct |contact |with |blood, |oral |fluids, |or |other |patient |materials; |2)
|indirect |contact |with |contaminated |objects |(e.g., |instruments, |equipment, |or
|environmental |surfaces); |3) |contact |of |conjunctival, |nasal, |or |oral |mucosa |with
droplets |(e.g., |spatter) |containing |microorganisms |generated |from |an |infected |person
|and |propelled |a |short |distance |(e.g., |by |coughing, |sneezing, |or |talking); |and |4)
|inhalation |of |air- |borne |microorganisms |that |can |remain |suspended |in |the |air |for
|long |periods
What |is |the |difference |between |universal |precautions |and |standard |precautions |in
|the |clinical |dental |practice? |- |ANSWERS✔✔ |Standard |precautions |apply |to |contact
|with |1) |blood; |2) |all |body |fluids, |secretions, |and |excretions |(except |sweat), |regard-
|less |of |whether |they |contain |blood; |3) |nonintact |skin; |and |4) |mucous |membranes.
|Saliva |has |always |been |considered |a |potentially |infectious |material |in |dental
|infection |control; |thus, |no |operational |difference |exists |in |clinical |dental |practice
|between |universal |precautions |and |standard |precautions.
In |the |text |the |acronym |OPIM |is |used |- |what |does |it |reference? |- |ANSWERS✔✔
|Other |potentially |infectious |materials. |OSHA |term |that |refers |to |1) |body |fluids
|including |semen, |vaginal |secretions, |cerebrospinal |fluid, |synovial |fluid, |pleural |fluid,
|pericardial |fluid, |peritoneal |fluid, |amniotic |fluid, |saliva |in |dental |procedures; |any
|body |fluid |visibly |contaminated |with |blood; |and |all |body |fluids |in |situations |where
|differentiating |between |body |fluids |is |difficult |or |impossible; |2) |any |unfixed |tissue
|or |organ |(other |than |intact |skin) |from |a |human |(living |or |dead); |and |3) |HIV-
containing |cell |or |tissue |cultures, |organ |cultures; |HIV- |or |HBV-containing |culture
|medium |or |other |solutions; |and |blood, |organs, |or |other |tissues |from |experimen- |tal
|animals |infected |with |HIV |or |HBV.
, Can |an |individual |that |is |a |carrier |of |Hepatitis |B |work |as |a |dental |receptionist?
|Why |or |why |not? |- |ANSWERS✔✔ |Yes, |as |that |position |does |not |perform |exposure-
prone |procedures.
Can |an |individual |with |Hepatitis |C |work |as |a |dental |hygienist?Why |or |why |not? |-
|ANSWERS✔✔ |No |restrictions |on |professional |activity.HCV-positive |health-care
|personnel |should |follow |aseptic |technique |and |standard |precautions.
Given |the |scenario |that |you |have |chicken |pox, |when |can |you |return |to |work |as |a
|dental |hygienist? |- |ANSWERS✔✔ |From |tenth |day |after |first |exposure |through
|twenty-first |day |(twenty-eighth |day |if |varicella-zoster |immune |globulin |[VZIG]
|administered) |after |last |exposure.
How |long |is |your |dentist-employer |required |to |keep |your |confidential |medically
|related |information? |- |ANSWERS✔✔ |at |least |the |duration |of |employment |plus |30
|years
What |body |fluid |contains |the |greatest |proportion |of |HBV |infectious |particle |titers
|and |is |the |most |critical |vehicle |of |transmission |in |the |health-care |setting? |-
|ANSWERS✔✔ |bloodand |blood-contaminated |saliva
How |long |can |HBV |survive |in |dried |blood |at |room |temperature |on |an |environmental
|surface? |- |ANSWERS✔✔ |less |than |or |equal |to |1 |week
Given |the |scenario |that |you |received |the |primary |vaccine |series |for |HBV, |what
|should |you |do |if |you |did |not |develop |an |adequate |antibody |response? |-
|ANSWERS✔✔ |complete |a |second |3-dose |vaccine |series |or |be |evaluated |to |determine
|if |they |are |HBsAg-positive. |If |no |antibody |response |occurs |after |the |second |series,
|testing |for |HBsAg |should |be |performed
Given |the |scenario |that |you |received |the |primary |vaccine |series |for |HBV, |what
|should |you |do |if |you |are |a |nonresponder |to |the |vaccination? |- |ANSWERS✔✔
|Nonresponders |to |vaccination |who |are |HBsAg-negative |should |be |considered
|susceptible |to |HBV |infection |and |should |be |counseled |regard- |ing |precautions |to
|prevent |HBV |infection |and |the |need |to |obtain |HBIG |prophylaxis |for |any |known |or
|probable |parenteral |exposure |to |HBsAg-positive |blood.
