Chapter 6 Employee / Occupational Health CIC Flashcards

1
Q

The IP is assisting Employee Health with personnel tuberculosis (TB) skin testing. Which of the following represents a know tuberculin skin test (TST) conversion in a healthcare worker?

a. Prior tuberculin test results are not available, but the current result is 16 mm after 48 hours.
b. Tuberculin reaction 1 year ago was 9 mm, and the current results are 13 mm.
c. A prior tuberculin reaction was not measured, but the employee states it was dime-sized. The current result is 11 mm.
d. Tuberculin reaction 1 year ago was 3 mm, and the current result is 18 mm

A

Tuberculin reaction 1 year ago was 3 mm, and the current result is 18 mm.

Interpretation of the TST depends on measured TST induration in millimeters, the person’s risk for being infected with M. tuberculosis, and risk for progression to active TB if infected. The TST test should be interpreted according to the CDC guidelines. A healthcare worker without known exposure who demonstrates an increase of =/> 10 mm is considered a positive result.

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2
Q

A food service worker is diagnosed with Hepatitis A. How long should this employee be on work restrictions?

a. Until 14 days after symptoms resolve
b. Until 7 days after onset of jaundice
c. Until 14 days after onset of jaundice
d. until 10 days after symptoms resolve

A

until 7 days after onset of jaundice

According to the ACIP, food service workers who are diagnosed with Hepatitis A must be restricted from food handling until 7 days after the onset of jaundice.

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3
Q

Because there is no vaccine for Hepatitis C, there have been national recommendations for prevention and control of Hepatitis C (HCV) infections. These include all but which recommendation

a. Screening and testing of blood donors.
b. Risk-reduction counseling and screening of persons at risk for Hepatitis C infection.
c. A national registry for all healthcare personnel to be Hepatitis C antibody positive.
d. Adherence to Standard Precautions and safe work practices in healthcare settings.

A

A national registry for all healthcare personnel to be Hepatitis C antibody positive.

APIC Occupational Exposure to Blood-borne Pathogens

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4
Q

The U.S. Public Health Service’s Advisory Committee on Immunization Practices (ACIP) recommends all of the following immunizations be provided to healthcare personnel EXCEPT:

a. Hepatitis A and B vaccines
b. Influenza vaccine
c. Measles, mumps, and rubella (MMR) and varicella-zoster vaccines (if not immune)
d. Bacillus Calmette-Guerin (BCG)

A

Bacillus Calmette-Guerin (BCG)

Immunization programs provide protection from vaccine-preventable diseases for both the workers and those under their care.
Vaccines for pre-exposure are:
Hepatitis A and B, influenza, measles, mumps, rubella, tetanus, pertussis, and varicella-zoster (chicken pox)

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5
Q

Which of the following statements is TRUE regarding storage of vaccines?

a. Vaccines should be taken out of the original packaging.
b. Vaccines should be stored in a labeled container/bin on the middle shelf a few inches from the wall
c. Vaccines should be packed tightly into the fridge
d. Vaccines should be stored in the top of the refrigerator

A

Vaccines should be stored in a labeled container/bin on the middle shelf a few inches from the wall.

Vaccine storage and handling errors can reduce vaccine potency and result in inadequate immune responses and protection against disease. The CDC recommends the following:
Vaccines need to be placed in the central area of the unit away from walls, vents and coils.
Avoid placing vaccines on the top shelf
There must be enough room to store the year’s largest inventory without crowding
A calibrated thermometer should be placed inside each unit
The unit must be dedicated to the storage of vaccines

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6
Q

An employee is exposed to a patient known to have chronic Hepatitis B. The employee is a known responder to the Hepatitis B vaccine, which was given to him as a student 5 years ago. What is the recommended post exposure treatment for the employee?

a. Test the employee and all close personal contacts for Hepatitis B
b. Start the Hepatitis B series on the employee because of the length of time since vaccination
c. No treatment is recommended for a known responder
d. Recommend giving the employee the Hepatitis A vaccine

A

No treatment is recommended for a known responder

According to the CDC guidelines, when the employee is known to have responded to positive Hepatitis B antibody following immunization series, no treatment is recommended.

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7
Q

An employee who is not immune to varicella-zoster was exposed to a patient with active chickenpox. How long must the employee remain on work restrictions?

a. Until evaluated by a physician
b. From day 10 after exposure to day 21 after exposure
c. No work restriction is necessary if no signs and symptoms are present
d. At the discretion of the hospital infectious disease physician

A

From day 10 after exposure to day 21 after exposure.

According to the ACIP guidelines, a non-immune healthcare worker who has direct contact with a patient with varicella zoster should be excluded from work duty from the 10th day after the first day of exposure through the 21st days after the last exposure.

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8
Q

Which of the following are acceptable methods for follow-up testing among healthcare personnel with unprotected exposure to TB?

  1. QuantiFERON-TB Gold testing (QFT-G) of sputum at the time of exposure and 12 weeks after exposure.
  2. QFT-G testing of blood at the time of exposure and 12 weeks after exposure.
  3. TST via tine tests at the time of exposure and 12 weeks after exposure.
  4. TST via the intradermal method at the time of exposure and 12 weeks after exposure.
  5. Chest radiograph for personnel with prior positive TST or QFT-G results
  6. Chest radiograph for symptomatic personnel with positive TST or QFT-G results

a. 1,3,6
b. 2,3,5
c. 1,4,6
d. 2,4,6

A

QFT-G testing of blood at the time of exposure and 12 weeks after exposure.

TST via the intradermal method at the time of exposure and 12 weeks after exposure.

Chest radiograph for symptomatic personnel with positive TST or QFT-G results

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9
Q

What is the appropriate temperature for vaccines that require refrigeration?

a. 46 F to 55 F (8 C to 13 C)
b. 25 F to 35 F (-4 C to 2 C)
c. 25 F to 45 F ( -4 C to 7 C)
d. 35 F to 46 F (-2 C to 8 C)

A

35 F to 46 F (-2 C to 8 C)

Most routinely recommended vaccines should be stored in refrigerator 35 F - 46 F (2 C - 8 C), with a desired average temperature of 40 F (5 C). Exposure to temperatures outside this range may result in reduced vaccine potency and increased risk of vaccine-preventable diseases.

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10
Q

The IP is reviewing the immunization records of healthcare personnel at their facility and discovers that employees born before 1957 do not have any record of receiving MMR vaccine. What should she recommend to the Human Resources Director regarding employees born before 1957?

a. They are considered immune and do not require follow up.
b. They should receive two doses of the vaccine 4 weeks apart.
c. They are only required to provide proof of immunity to measles.
d. They are required to provide proof of immunity to measles, mumps and rubella.

A

They are required to provide proof of immunity to measles, mumps and rubella.

All persons working in healthcare facilities should be immune to measles, mumps, and rubella. It is reasonable to require proof of immunization.

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11
Q

Staff assisting with bronchoscopy must wear which type of respiratory protection?

a. Surgical / procedure mask
b. Face shield
c. Protection not required
d. A fit-tested respirator or powered air purifying respirator (PAPR)

A

A fit-tested respirator or powered air purifying respirator (PAPR)

Healthcare personnel assisting with bronchoscopy should wear appropriate personal protective equipment including a fit-tested respirator or a PAPR.

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12
Q

An employee has sustained a needle stick injury from a blood-contaminated needle. The source patient was Hepatitis B virus (HBV) positive, and the employee had completed one of the three vaccinations in the Hepatitis B series. Which of the following is the correct post-exposure prophylaxis (PEP) for this patient?

a. Complete the Hepatitis B vaccine series
b. Complete the Hepatitis B vaccine series and provide Hepatitis B immunoglobulin
c. Provide Hepatitis B immunoglobulin and begin interferon therapy
d. No PEP is needed

A

Complete the Hepatitis B vaccine series and provide Hepatitis B immunoglobulin

HBV is transmitted by percutaneous or mucosal exposure to infectious blood or body fluids. The risk of HBV seroconversion after a percutaneous injury ranges from 23% - 63% depending on the Hepatitis B e antigen (HBeAG) status of the source person. For exposed persons who are in the process of being vaccinated but have not completed the vaccination series, vaccination should be completed as scheduled, and Hepatitis B immunoglobulin should be added as soon as possible after exposure.

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13
Q

The IP is developing a seasonal influenza immunization promotion program and decides to survey some healthcare personnel to determine their knowledge and attitude about influenza vaccines. Several healthcare personnel state that they do not want to be immunized because they believe that the vaccine can give them the flu. What is the best response the IP can give to alleviate this fear?

a. The symptoms of the flu from the vaccine are much milder than actually getting the flu, so they are better off being immunized
b. There are no known reactions or side effects to the flu vaccine
c. Any symptoms they experience are due to allergies to components of the vaccine, so they will not get the flu from the vaccine
d. They might experience symptoms that are due to the immune response to the vaccine, but they cannot get the flu from the vaccine.

A

They might experience symptoms that are due to the immune response to the vaccine, but they cannot get the flu from the vaccine.

Vaccination is the primary method for preventing influenza and its complications. Healthcare personnel compliance with annual influenza vaccination is an expected behavior to protect patients, staff and families. There are two forms of vaccination available: the inactivated, injectable vaccine and the live/attenuated, intranasal vaccine (LAIV). Inactivated influenza vaccine contains noninfectious viral components and cannot cause influenza. LAIV can cause nasal congestion, sore throat, and headache for a few days. Some mild symptoms such as nasal congestion, sore throat, and headache can occur as a result of the immune response to the vaccine but these are typically minor and short-lived.

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14
Q

Dialysis staff are most at risk for exposure to blood borne pathogens during:

1) . Initiation and termination of dialysis
2) . Reprocessing, cleaning, and disinfection procedures
3) . Medication administration.
4) . Vascular access hemorrhage.

a. 1,2
b. 2,3
c. 2,4
d. 1,3

A

Initiation and termination of dialysis

Reprocessing, cleaning, and disinfection procedures

Staff members must follow Standard Precautions when exposure to blood or other potentially infectious materials is anticipated or likely. Times during which exposure is most likely to occur include initiation and termination of dialysis and during reprocessing, cleaning, or disinfection procedures.

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15
Q

According to the CDC, which type of thermometer should be used in a vaccine storage unit?

a. Fluid-filled bio-safe liquid thermometer
b. Infrared thermometer
c. Cart recorder
d. Probe in a glycol-filled bottle with an external monitoring device.

A

Probe in a glycol-filled bottle with an external monitoring device.

The CDC recommends using a temperature probe in a bottle filled with a thermal buffer, like glycol, that connects to an external monitoring device. This allows for temperatures to be monitored without having to open the unit door. In addition, the CDC recommends the use of digital data loggers. The CDC does not recommend the use of fluid-filled bio-safe liquid thermometers, infrared thermometers, or chart recorders.

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16
Q

A patient in the Emergency Room is diagnosed with bacterial meningitis due to Neisseria meningitidis. The patient was not properly isolated, and a number of employees entered her room without wearing a mask. Which employee should receive PEP?

a. The phlebotomist who drew blood on the patient
b. The respiratory therapist who intubated the patient
c. The radiology technician that performed the chest radiograph.
d. The employee from admissions that registered the patient.

A

The respiratory therapist who intubated the patient

PEP is advised for persons who have had intensive, unprotected contact with infected patients. Unprotected means without wearing a mask, and intensive contact would be mouth-to-mouth resuscitation, endotracheal intubation, endotracheal tube management, or close examination of the orophrynx, prophylactic therapy should be administered immediately after the unprotected exposure.

17
Q

U.S. Occupational Safety and Health Administration (OSHA) mandates that which of the following vaccines be provided at no cost to healthcare providers and others at risk for blood and body fluid exposure?

a. Hepatitis A
b. Hepatitis B
c. BCG
d. Meingococcal

A

Hepatitis B

Exposure to blood borne pathogens poses a serious risk to healthcare personnel. Avoiding occupational blood exposures through adherence to standard precautions and other safe work practices is essential.

18
Q

Which of the following is NOT proof of measles immunity for healthcare personnel?

a. Documentation of vaccination with two doses of live measles virus-containing vaccine
b. Laboratory evidence of immunity
c. Born after 1957
d. laboratory confirmation of disease

A

Born after 1957

According to the ACIP, the following proof of measles immunity for healthcare providers. 1. documentation of vaccination with 2 doses of live measles virus-containing vaccine. 2. Lab evidence of immunity. 3. Lab confirmation of disease. 4. Born before 1957.

19
Q

There has been a local bio-terrorism event and three healthcare personnel were exposed to inhalation anthrax. They have been decontaminated and are taking PEP, and they would like to return to work. The incubation period of inhalation anthrax is usually about 7 days but can be as long as 2 months. What should the IPs recommendation be regarding work restrictions for these employees?

a. They will not be allowed to return to work for the duration of the 2 month incubation period.
b. They will not be allowed to return for the duration of prophylactic treatment
c. They may return to work but mush wear respiratory protection while in the facility
d. They may return to work with no restrictions

A

They may return to work with no restrictions

Although work restriction in such a scenario would likely be influenced by outside agencies such as the local and state Health Departments and the CDC, inhalation anthrax is not transmissible among humans so these exposed healthcare workers pose no risk to patients or other employees.

20
Q

The occupational health nurse has requested the IP’s assistance in reporting the nursing needle-stick rate annually. Which formula should be used?

a. Total number of needle sticks reported by nursing divided by the average daily census.
b. Total number of needle sticks reported by nursing divided by the needle devices used by nursing.
c. Total number of needle sticks reported by nursing divided by the number of full-time nurses employed during the year.
d. Total number of needle sticks reported by nursing divided by the number of injections by nurses.

A

Total number of needle sticks reported by nursing divided by the number of full-time nurses employed during the year.

The rates of needle stick injuries can be identified by occupational category. For example: total number of needle sticks reported by nursing in 1 year divided by number of full-time equivalent nurses employed in the year equals the rate of needle sticks per full-time equivalent nurse per year.

21
Q

The IP is asked to recommend the length of time a staff member who has developed influenza should be excluded (furloughed) from work duties. The staff member was diagnosed with flu on March 15. She consults the CDC for guidance and recommends that the employee should:

a. Remain off work until March 20
b. Remain off work for the duration of the illness
c. Remain off work until March 21
d. Remain off work for 5 days (March 20) or until symptoms have resolved, whichever is longer.

A

Remain off work for 5 days (March 20) or until symptoms have resolved, whichever is longer.

Flu is primarily spread between individuals via respiratory secretions (droplet), viral shedding starts 24 - 48 hours after infection and typically 24 hours before onset of symptoms. Shedding persists usually for 5 days, but can be longer in children and in immunocompromised persons.

22
Q

An employee is exposed to a known HIV-positive patient’s blood via needle stick after giving an IM injection. The patient has known high viral load. After the employee has thoroughly washed the exposed area with soap and water, what is the next step that should be taken following this exposure?

a. The employee needs to be counseled about using safe sex practices and to avoid pregnancy, breast-feeding, and blood and organ donation for 3 months after exposure.
b. The employee should be treated ASAP with expanded multi-drug PEP.
c. The employee should have baseline testing for HIV, Hep B antigen, and Hep B antibody
d. The employee should be counseled by a clinician knowledgeable about HIV transmission risks.

A

The employee should be treated ASAP with expanded multi-drug PEP.

Because the patient is known to have a high HIV viral load, the exposure should be considered an increased risk for transmission. According to the CDC, most HIV exposures warrant a two-drug regimen using two nucleoside reverse transcriptase inhibitors (NRTIs) or one NRTI and one nucleotide reverse transcriptase inhibitor. The CDC recommends that the addition of a third or even fourth drug should be considered for exposures that pose an increased risk for transmission or that involve a source in whom antiretrovial drug resistance is likely.

23
Q

An IP is participating on a multidisciplinary team formed to decrease sharps injuries in an Ambulatory Surgical Center, of the following possible activities, which would be most likely to assist the team?

a. A quarterly review of sharps injury data stratified by surgical team
b. An analysis of employee participation in the Hepatitis B vaccination program
c. Root cause analysis after exposure incidents
d. A review of surgery duration in cases in which sharp injuries were reported.

A

Root cause analysis after exposure incidents.

The root cause analysis process takes a retrospective look at adverse outcomes and determines what happened, why it happened, and what an organization can do to prevent the situation from recurring.

24
Q

A new employee who needs to be tested for TB infection before starting work has a history of BCG vaccination. Which method of TB testing would be the best choice in this situation?

a. The TST would be best method to use because it is the most cost-effective testing method.
b. A TST would be the best method to use because it distinguishes latent from active TB infection.
c. An interferon-gamma release assay (IGRA) blood test would be the best method to use because prior BCG immunization does not cause a false positive with this test.
d. An IGRA blood test would be the best method to use because it is a rapid test and provides results within 30 minutes.

A

An interferon-gamma release assay (IGRA) blood test would be the best method to use because prior BCG immunization does not cause a false positive with this test.

An IGRA would be the best choice in this case because it will not be affected by the employee’s prior BCG vaccination. Other advantages of IGRAs are that they do not require a follow-up visit to read the test and that the results are available within 24 hours, however IGRA testing is generally more expensive that TST.

25
Q

Which of the following is NOT evidence of varicella immunity in healthcare personnel?

a. Evidence to two doese of the varicella vaccine
b. Laboratory evidence of immunity
c. Laboratory confirmation of disease
d. Born before 1980

A

Born before 1980

According to ACIP the following are proof of immunity for varicella 1. Evidence of two doses of the varicella vaccine. 2. Lab evidence of immunity to varicella. 3. Lab confirmation of disease. Birth before 1980 should not be considered proof of immunity for health care workers.