Deck 23: Viral Hepatitis

Question 1

A patient with a known exposure to hepatitis B 3 weeks earlier has negative results for all markers when a hepatitis profile is performed,except for IgM anti-HBc.What is a possible reason for this result?

A) The wrong patient specimen was tested.
B) A false-negative result was caused by a technical error.
C) HBsAg was still too low in concentration to detect.
D) Anti-HBs titer had already peaked and was no longer detectable.

Answer 1

HBsAg was still too low in concentration to detect.

Question 2

The hepatitis B serologic marker that yields a positive test result and is used as a benchmark for immunity after vaccination is:

A) anti-HBc IgM.
B) anti-HBc IgG.
C) anti-HBe.
D) anti-HBs.

Answer 2

anti-HBs.

Question 3

Match the infection with the correct description.

Hepatitis B virus infection

A)Long-incubation hepatitis
B)Infectious hepatitis or short-incubation hepatitis

Answer 3

Long-incubation hepatitis

Question 4

Fill in the blanks in the table.
Characteristics of Viral Hepatitis

1.Type A epidemiology
A)Parenteral
B)Fecal-oral
C)Body fluids
2.Type A incubation period

A)15-45 days
B)15-150 days
C)30-50 days
D)40-180 days

Question 5

Which of the following hepatitis viruses can result in chronic infection and the potential development of liver cancer?

A) Hepatitis A
B) Hepatitis B
C) Hepatitis C
D) Both b and c

Question 6

MATCHING
Match the hepatitis virus with the correct description (primary or secondary).

Hepatitis B

A)Primary hepatitis virus
B)Secondary hepatitis virus

Question 7

The serologic markers in expected order of appearance in the serum of a patient with hepatitis B infection are:

A) HBsAg,HBeAg,HBcAb,HBeAb,and HBsAb.
B) HBeAg,HBcAg,HBsAg,HBsAb,and HBcAb.
C) HBcAg,HBeAg,HBcAb,HBsAb,and HBsAg.
D) HBcAg,HBsAb,HBeAg,HBsAg,and HBcAb.

Question 8

Which hepatitis viruses have been scientifically identified as being spread by the transfusion of unscreened blood transfusion products?

A) Hepatitis A and hepatitis B
B) Hepatitis A and hepatitis D
C) Hepatitis B and hepatitis C
D) Hepatitis A and hepatitis G

Question 9

Match the infection with the correct description.

Hepatitis A virus infection

A)Long-incubation hepatitis
B)Infectious hepatitis or short-incubation hepatitis

Question 10

Hepatitis B vaccination should be administered in three doses over a span of _________.

A) 6 weeks
B) 2 months
C) 7 months
D) 1 year

Question 11

Which hepatitis B serologic marker is the classic first indication of a hepatitis B infection?

A) Anti-HBc
B) Anti-HBe
C) HBsAg
D) HBcAg

Question 12

HBV vaccine is administered three times over a period of ________months.

A) 2
B) 4
C) 7
D) 12

Question 13

Fill in the blanks in the table.Use the following answers only once.

A)Rare form of hepatitis associated with hepatic failure.
B)Average length of time is 75 days (range,40-180 days)in HBV infection.
C)Probably accounts for persons with demonstrable antibodies in their serum but no reported history of hepatitis.
D)Accompanied by hepatic inflammation and necrosis that lasts for at least 6 months.
Forms of Hepatitis

Question 14

MATCHING
Match the hepatitis virus with the correct description (primary or secondary).

Hepatitis C

A)Primary hepatitis virus
B)Secondary hepatitis virus

Question 15

Primary hepatitis viruses account for approximately ______% of cases of hepatitis.

A) 10
B) 25
C) 50
D) 95

Question 16

A chronic carrier state (persistent infection)and chronic hepatitis (chronic liver disease)_______ occur as long-term sequelae of hepatitis A.

A) do
B) do not

Question 17

MATCHING
Match the hepatitis virus with the correct description (primary or secondary).

Epstein-Barr virus

A)Primary hepatitis virus
B)Secondary hepatitis virus

Question 18

The most frequently identified hepatitis B low-level carriers have _________ in their serum.

A) anti-HBe
B) anti-HBs
C) anti-HBc IgM
D) anti-HBc

Question 19

Who should receive the hepatitis A vaccine?

A) Homosexual men who are sexually active
B) All children under 1 year of age (12-23 months)
C) Individuals traveling to areas endemic for hepatitis A
D) All of the above

Question 20

MATCHING
Match the hepatitis virus with the correct description (primary or secondary).

Hepatitis A

A)Primary hepatitis virus
B)Secondary hepatitis virus

Question 21

Match the virus with the appropriate description.

Hepatitis B virus

A)Complex DNA virus
B)Small,RNA-containing picornavirus
C)Small,enveloped,single-stranded RNA virus

Question 22

Match the virus with the appropriate description.

Hepatitis C virus

A)Complex DNA virus
B)Small,RNA-containing picornavirus
C)Small,enveloped,single-stranded RNA virus

Question 23

Match the virus with the appropriate description.

Hepatitis A virus

A)Complex DNA virus
B)Small,RNA-containing picornavirus
C)Small,enveloped,single-stranded RNA virus