Which is true about a tuberculin skin test (TST):

Guidelines for transporting specimens include:

1) Transport within 2 hours of collecting a specimen

2) Transport in leakproof specimen containers and sealable leakproof bags

3) Transport specimen in the syringe used to collect it

4) Refrigerate all specimens prior to transport

The incubation period for pertussis in immunocompetent persons is usually:

The optimal time to collect a sputum specimen for acid-fast bacilli (AFB) testing to rule out TB would be:

An infection preventionist (IP) is reviewing the cerebrospinal fluid (CSF) results from a patient admitted the previous night. The CSF is cloudy and has an elevated white blood cell count (WBC), markedly increased neutrophils, low glucose level, and elevated protein concentration. What type of meningitis should she suspect?

A hospital has hired a new manager of the Microbiology section of the Laboratory. During the initial discussion with the manager about the Infection Prevention and Control program, the IP stresses the importance of collaboration between the departments in reducing healthcare-associated infections (HAIs). Of the choices below, which activity will best meet this goal?

Which factor is commonly associated with Clostridium difficile infections (CDIS)?

Western blot testing for human immunodeficiency virus (HIV) is used to detect:

The primary immune response after exposure to a communicable disease pathogen or vaccine is production of:

The paroxysmal stage of pertussis usually lasts:

An IP is conducting an educational session to help the nursing staff understand infectious disease transmission. She explains that the initial element in virulence is the ability of an organism to survive in the external environment during transit between hosts. What is the second element of virulence?

When are lgM antibodies to Hepatitis A virus (HAV) detectable in the blood?

The management of an infected surgical site includes the following foundational principles:

1) Open and drain the incision
2) Debride fibrous debris and necrotic soft tissue
3) Replace hardware
4) Implement antimicrobial management as needed
5) Manage the open wound

During annual TST, an employee’s test result was read as 10 mm induration. The employee’s last TST was negative!. This initial result indicates a:

A patient was just admitted to a long-term care facility from the local hospital. The patient is being treated for psoriasis. The psoriasis does not appear to be responding to treatment, and 48 hours later, the infection preventionist (IP) receives a report that a Certified Nursing Assistant has developed an itchy rash. The patient’s physician visits and determines that the patient has crusted scabies and not psoriasis. Another name for crusted scabies is:

A microbe that can grow in the absence of oxygen but is also able to utilize oxygen for growth is a/an:

Which of the following statements about influenza is false?

A patient who was hospitalized for 2 days calls 3 days after discharge complaining that he has developed healthcareassociated scabies due to his recent inpatient stay. The IP knows that his scabies infestation is not healthcare-associated because:

Which of the following statements is false regarding influenza viruses?

A nurse is concerned that a patient in the neurology ward has a prion disease after receiving a lab report stating that the patient had a positive nucleic acid test for John Cunningham virus (JCV) in the cerebrospinal fluid. What is the best response to give this nurse?

The IP is reviewing the history of a patient who has been in the facility on a ventilator for 1 week. All of the following are risk factors for colonization and infection with multidrug-resistant pathogens except:

The current community-acquired pneumonia (CAP) national quality measures used in the United States include all of the following except:

Measures that can be practiced for prevention of aspiration include all of the following except:

All of the following are descriptions of patients with immunocompromised status except:

Which of the following is not an effect of malnutrition on the body’s immune system?