Q: Which formula best represents the calculation for HIV prevalence rate in a population?

$$\frac{\text{Number of people living with HIV}}{\text{Total population}} \times 100$$

Question 1

Which type of cell does HIV primarily attack, leading to a weakened immune system?

Accepted Answer

Helper T cells

Question 2

A person is exposed to HIV and develops flu-like symptoms. How long can it typically take for these initial symptoms to appear?

Accepted Answer

Within 2-4 weeks

Question 3

Which population in the U.S. is most disproportionately impacted by HIV/AIDS?

Accepted Answer

African American men who have sex with men (MSM)

Question 4

Which of the following is NOT a potential way HIV is transmitted?

Accepted Answer

Kissing

Question 5

What is the main purpose of antiretroviral therapy (HAART) in HIV treatment?

Accepted Answer

To suppress HIV replication and maintain healthy immune function

Question 6

Which test can detect HIV the earliest after exposure?

Accepted Answer

Nucleic acid test (NAT)

Question 7

A healthcare worker is accidentally exposed to HIV via a needlestick injury. What is the recommended time frame to begin post-exposure prophylaxis (PEP) for maximum effectiveness?

Accepted Answer

Within 72 hours

Question 8

Which statement best summarizes the effectiveness of current HIV treatments?

Accepted Answer

Current treatments can suppress HIV replication and slow AIDS progression.

Question 9

Which of the following is a major reason why early diagnosis of HIV is important?

Accepted Answer

It enables early treatment, reduces risk of transmission, and prevents progression to AIDS.

Question 10

Which age group is most affected by HIV globally?

Accepted Answer

25-35 years

Question 11

Which region of the world has the highest number of new HIV infection cases?

Accepted Answer

Sub-Saharan Africa

Question 12

Which of the following is an example of an opportunistic infection associated with AIDS?

Accepted Answer

Kaposi's sarcoma

Question 13

Which prevention method is specifically designed to reduce HIV transmission among people who inject drugs?

Accepted Answer

Needle exchange programs

Question 14

Which statement about HIV transmission is INCORRECT?

Accepted Answer

A person with Kaposi's sarcoma is guaranteed to be infected with HIV.

Question 15

Which formula best represents the calculation for HIV prevalence rate in a population?

Accepted Answer

$$\frac{	ext{Number of people living with HIV}}{	ext{Total population}} 	imes 100$$

Question 16

A patient receives a combo antigen-antibody test for HIV. How soon after exposure can this test typically detect HIV?

Accepted Answer

2-4 weeks

Question 17

Which of the following is a key difference between HIV and AIDS?

Accepted Answer

HIV is a virus, while AIDS is a syndrome caused by the progression of HIV infection.

Question 18

Which prevention strategy is recommended for individuals at high risk of HIV exposure before any exposure occurs?

Accepted Answer

Pre-exposure prophylaxis (PrEP)

Question 19

Which of the following statements about HIV testing is TRUE?

Accepted Answer

Nucleic acid tests (NAT) can detect HIV within 1-4 weeks after exposure.

Question 20

A patient with HIV is not showing any symptoms but has a low helper T cell count. What stage of HIV infection is this patient likely in?

Accepted Answer

Asymptomatic (latent) stage

HIV and AIDS: Understanding, Prevention, Diagnosis, and Management

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