bio250 exam 5 (Graded)

10 Jun bio250 exam 5 (Graded)

Question
Question 1

Meningococcemia is

Select one:

a. Best treated with penicillin G

b. Associated with vascular collapse, hemorrhage and petechiae

c. Started from a nasopharyngeal infection

d. Caused by a gram negative diplococcus

e. All of the choices are correct

Question 2

Influenza vaccines include all the following except

Select one:

a. Inactivated intramuscular vaccine

b. Usually incorporates three different strains

c. Attenuated, nasal drops vaccine

d. Provides lifelong immunity

e. Has an overall effectiveness of 70% – 90%

Question 3

All the following pertain to measles (rubeola) except

Select one:

a. Transmitted by direct contact with the rash

b. Humans are the only reservoir for the pathogen

c. Secondary bacterial otitis media and sinusitis can occur

d. Involves a fatal complication called subacute sclerosingpanencephalitis (SSPE)

e. Dry cough, sore throat, fever, conjunctivitis are symptoms

Question 4

Although many viruses can cause meningitis, the most common viral cause is

Select one:

a. Herpes simplex

b. Cytomegalovirus

c. Arbovirus

d. Enterovirus

e. Arenavirus

Question 5

The symptoms that occur in cyclic 48- to 72-hour episodes in a malaria patient are

Select one:

a. bloody, mucus-filled stools, fever, diarrhea, and weight loss.

b. fever, swollen lymph nodes, and joint pain.

c. urinary frequency and pain, and vaginal discharge.

d. chills, fever, and sweating.

e. sore throat, low grade fever, and swollen lymph nodes.

Question 6

Which of the following is not true of Enterotoxigenic E. coli (ETEC)?

Select one:

a. Causes traveler’sdiarrhea

b. Has an A-B, heat labile exotoxin

c. Has heat-stable exotoxins

d. A high fever is present

e. Mainly effects the small intestine

Question 7

Entamoeba histolytica is acquired by

Select one:

a. Ingestion of cysts of the pathogen

b. Contaminated food

c. Contaminated water

d. Anal-oral sexual contact

e. All of the choices are correct

Question 8

The toxin of Staphylococcus aureus strains that causes blisters and desquamation of skin in scalded skin syndrome is

Select one:

a. Enterotoxin

b. Hemolysin

c. Toxic shock syndrome toxin

d. Exfoliative toxin

e. Erythrogenic toxin

Question 9

The following are characteristics of Chlamydias except

Select one:

a. Gram negative

b. Obligate parasites that need host cells for growth

c. Elementary bodies are the infectious form

d. Elementary bodies lack enzyme systems for making ATP

e. Reticulate bodies differentiate into elementary bodies

Question 10

Fifth disease

Select one:

a. Is caused by Parvovirus B19

b. Is a childhood febrile disease with a bright red rash on the cheeks

c. Involves pathogen capable of crossing the placenta

d. Has a maculopapular rash that lasts for days to weeks

e. All of the choices are correct

Question 11

Streptococcal pharyngitis involves all the following except

Select one:

a. A purulent exudate over the tonsils

b. Can lead to scarlet fever if it is an erythrogenic toxin-producing strain

c. Can lead to serious sequelae

d. Is usually caused by the viridans streptococci

e. Causes redness, difficulty in swallowing and fever

Question 12

Which of the following has not been an effective treatment for syphilis?

Select one:

a. Mercury

b. Arsenic

c. Malaria

d. Penicillin G

e. Ampicillin

Question 13

Reye’s syndrome involves

Select one:

a. Aspirin use

b. A febrile viral illness such as influenza or chickenpox

c. Fatty degeneration of liver, brain, kidney

d. Children and adolescents

e. All of the choices are correct

Question 14

Cat-scratch disease can be prevented by

Select one:

a. avoiding ticks.

b. pasteurizing milk.

c. vaccine.

d. animal control.

e. cleaning the scratch wound.

Question 15

Which of the following is a sign of meningitis?

Select one:

a. Headache

b. Stiff neck

c. White blood cells in cerebrospinal fluid

d. Fever

e. All of the choices are correct

Question 16

During which stage of syphilis does fever, lymphadenopathy and a red to brown rash occur?

Select one:

a. Primary

b. Secondary

c. Tertiary

d. Latent

e. All of the choices are correct

Question 17

Campylobacter infection has all of the following characteristics except

Select one:

a. Can last over two weeks

b. Burrow into the mucosa of the ileum and multiply

c. Can lead to Guillain-Barre syndrome

d. Can cause acute temporary paralysis

e. Is caused by a shiga toxin

Question 18

A diagnosis of tuberculosis involves

Select one:

a. Chest X-ray

b. Acid fast stain of sputum

c. Sputum culture

d. Tuberculin skin test

e. All of the choices are correct

Question 19

Which is not associated with tularemia?

Select one:

a. a zoonosis

b. transmission by arthropod vectors

c. a gram-positive bacterium

d. symptoms include fever, swollen lymph nodes, ulcerative lesions, conjunctivitis, and pneumonia

e. sometimes called rabbit fever

Question 20

In paralytic polio, what structures are damaged?

Select one:

a. Peripheral nerves

b. Diaphragm

c. Anterior horn cells

d. Sensory nerves

e. Brain stem