Module 4 Test

Question 1

The risk of infection with BBPs after stick with used needle (no gloves / no immunization) is…

Answer 1

HIV 0.3%, HCV 3.0%, HBV 30.0%

Question 2

Hepatitis A virus usually enters the host via..

Answer 2

contaminated food or water

Question 3

Which is not a known site of hepatitis A viral replication in the host?

Answer 3

Blood

Question 4

Confirmation of a current hepatitis A infection is established by…

Answer 4

blood test for hepatitis A IgM antibodies

Question 5

What is not a symptom of Hep A infection? What are the symptoms?

Answer 5

Enlarged cervical lymph nodes..

Symptoms are.. dark urine, light feces, jaundice

Question 6

Hep A vaccine is recommended when?

Answer 6

is recomended as a preventive measure for travel and identified contacts of a patient with d. Hepatits A

Question 7

Hepatitis B may be transmitted through..

Answer 7

saliva, blood, and blood products

Question 8

Patients with hep B infections often symptomatic or asymptomatic?

Answer 8

asymptomatic

Question 9

Hep B chronic carriers are..

Answer 9

predisposed to primary hepatocellular carcinoma
comprise less than 10% of the people infected with the virus
body fluids remain infectious for several years

Question 10

What is not a likely route of transmission of hepatitis B virus?

Answer 10

ingestion of water contaminated with feces

Question 11

Body fluids, which may be infectious for hepatitis B during acute infection and in chronic carriers, include:

Answer 11

1) saliva

2) semen

3) CSF

Question 12

What procedures are followed/designed to protect health care workers from Hep B infections

Answer 12

hep B immunization
Hep B immune globulin
routine practices

Question 13

the initial diagnoses of Hep B infection may be established by a positive blood test for..

Answer 13

surface antigen HBsAg) - the virus

Question 14

Is there a vaccine to provide protection against Hep C?

Answer 14

NO!

Question 15

Characteristics of HIV virus..

Answer 15

lipid envelope with glycoprotein spikes
protein coat
core containing RNA

Question 16

The main host cells for HIV are..

Answer 16

lymphocytes

Question 17

HIV only binds to cells having..

Answer 17

CD4 receptors

Question 18

Before HIV can be incorporated in the nucleic acid of a host cell..

Answer 18

viral RNA is transcribed to DNA

Question 19

the effect on host of HIV replication includes..

Answer 19

abnormally low levels of CD4 cells
impaired cellular immunity
susceptibility to infection with a variety of microorganisms

Question 20

The routine screen test for HIV detects..

Answer 20

HIV antibodies

Question 21

During the latent period of HIV infection the individual…

Answer 21

the individual has no clinical symptoms of AIDS

Question 22

Which test results correlates with clinical aids?

Answer 22

CD4 cell count below 200

Question 23

Treating HIV positive patients with ZDV (zidovudine) results in..

Answer 23

slow viral replication in host cells

Question 24

What can HIV not be transmitted by?

Answer 24

touching

Transmitted by… blood.. semen.. vaginal secretions.

Question 25

Chronic carriers are most common when infected with…

Answer 25

HCV (Hep C virus)

Question 26

If all of your immunizations are up to date, the greatest risk of infection if you poke yourself with a used needle from and infected patient is from a patient with :

Answer 26

HCV

Question 27

Recent emerging viral infections of concern to Canadians include:

Answer 27

SARS
West Nile
H1N1 Flu

Question 28

Which websites could you look at for information regarding emerging infections?

Answer 28

WHO, CDC
Health Canada and CHICA
Alberta Health
IPC Bulletins