Question 1

A city has a population of 150.000. Thirty new cases of tuberculosis (TB) were diagnosed in the city last year. These now cases brought the total number of active TB cases in the city last year to 115. Which of the following equations represents the incidence rate tor TB per 100.000 in that year?

Options :

A : (30 ÷ 150.000) x 100.000 = X

B : (30÷ 150.000) x 100 = X

C : (115 ÷ 150.000) x 100.000 - X

D : (115 ÷ 100.000) x 100 = X

Answer: A

Question 2

A patient with shortness of breath and a history of a tuberculin skin test (TST) of 15 mm induration was admitted to a semi-private room. The infection preventionist's FIRST action should be to

Options :

A : contact the roommate-s physician to initiate TST.

B : review the patient-s medical record to determine the likelihood of pulmonary tuberculosis (TB).

C : report the findings to the Employee Health Department to initiate exposure follow-up of hospital staff.

D :

transfer the patient to an airborne infection isolation room and initiate appropriate isolation for tuberculosis (TB).

Answer: B

Question 3

In which of the following ways is human immunodeficiency virus similar to the Hepatitis B virus?

Options :

A : The primary mechanism of transmission for both is maternal-fetal

B : Needlestick exposure leads to a high frequency of healthcare worker infection

C : Transmission may occur from asymptomatic carriers

D : The risk of infection from mucous membrane exposure is the same

Answer: C

Question 4

Which of the following operating suite design features is LEAST important for the prevention of infection?

Options :

A : Type of floor material

B : Positive pressure air handling

C : Placement of sinks for surgical scrubs

D : Control of traffic and traffic flow patterns

Answer: A

Question 5

The Environmental Services department is purchasing a new disinfectant that is an approved hospital disinfectant with no tuberculocidal claim. This product is appropriate for cleaning which of the following items?

Options :

A : Laryngoscope blades

B : Blood pressure cuff

C : Respiratory therapy equipment

D : Ultrasound probe

Answer: B

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