Question 1

Which humoral antibody indicates previous infection and assists in protecting tissue?

Options :

A : IgA

B : IgD

C : IgG

D : IgM

Answer: C

Question 2

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 3

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 4

Which of the following individuals should be excluded from receiving live attenuated influenza virus?

Options :

A : Pregnant persons

B : Healthy persons aged 2 to 49

C : Persons with allergies to chicken feathers

D : Persons simultaneously receiving an inactivated vaccine

Answer: A

Question 5

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

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