Graded Exam 4 - Assignment material PDF

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4/15/2021

Graded Exam 4

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Unit 15: Diagnosing Infections

Started on Monday, March 22, 2021, 10:38 AM State Finished Completed on Monday, March 22, 2021, 11:35 AM Time taken 57 mins 12 secs Grade 72.00 out of 90.00 (80%)

Question 1 Correct

All of the following are associated with IgE and mast-cell-mediated allergy except ______.

4.50 points out of 4.50

Select one: a. drug allergies b. eczema c. anaphylaxis d. allergic asthma e. systemic lupus erythematosus

Question 2 Incorrect

Based on new information from the Human Microbiome Project, the human body typically begins to be colonized by its normal biota

0.00 points out of 4.50

Select one: a. before birth, in utero. b. during and immediately after birth. c. when a child rst goes to school. d. when an infant gets its rst infectious disease. e. during puberty.

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Question 3

Graded Exam 4

Which of the following is not a property of B cells?

Correct 4.50 points out of 4.50

Select one: a. They produce plasma cells and memory cells. b. There are low numbers circulating in the blood. c. They require antigen presented with MHC proteins. d. They have receptors called immunoglobulins. e. They mature in the bone marrow.

Question 4 Correct 4.50 points out of 4.50

You are the supervisor of a new reference microbiology laboratory, which will receive clinical specimens for identication of bacterial pathogens. When choosing the types of media to order for culture and isolation procedures in your laboratory, what question(s) do you need to answer? Select one: a. What type of bacteria will you be culturing? b. What are the growth factors required by the bacteria that you will be identifying? c. What kind of microbiotawill the patient specimens contain? d. All statements are correct.

Question 5

The sux –itis means ______.

Correct 4.50 points out of 4.50

Select one: a. blood b. a disease or morbid process c. an inammation d. tumor e. pertaining to

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Question 6 Correct

Graded Exam 4

The most numerous WBCs that have multilobed nuclei and are very phagocytic are ______.

4.50 points out of 4.50

Select one: a. basophils b. eosinophils c. neutrophils d. monocytes e. lymphocytes

Question 7

Destruction of lymphocytes with self-specicity is called ______.

Correct 4.50 points out of 4.50

Select one: a. clonal deletion. b. proliferation. c. clonal selection. d. differentiation. e. hypersensitivity.

Question 8 Correct 4.50 points out of 4.50

DiGeorge syndrome is the result of Select one: a. autoantibodies. b. delayed hypersensitivity. c. congenital absence or immaturity of the thymus gland. d. failure of B-cell development and maturity. e. a genetic defect in the development of both T cells and B cells.

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Question 9 Incorrect 0.00 points out of 4.50

Graded Exam 4

The main function of the mononuclear phagocyte system is to provide Select one: a. surveillance cells. b. a connection between tissues and organs. c. ltration of extracellular uid. d. ltration of blood.

Question 10

Virulence factors include all of the following except ______.

Correct 4.50 points out of 4.50

Select one: a. capsules b. ribosome c. exoenzymes d. endotoxin e. exotoxin

Question 11 Correct

The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is ______.

4.50 points out of 4.50

Select one: a. disinfection b. sterilization c. antisepsis d. sanitization

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Question 12 Correct

Graded Exam 4

The four classic signs and symptoms of inammation include all of the following except ______.

4.50 points out of 4.50

Select one: a. redness b. warmth c. swelling d. pain e. chills

Question 13 Correct

The immunoglobulin class that is the only one capable of crossing the placenta is ______.

4.50 points out of 4.50

Select one: a. IgA b. IgD c. IgE d. IgG e. IgM

Question 14

All of the following pertain to uoroquinolones, except

Incorrect 0.00 points out of 4.50

Select one: a. they are broad spectrum. b. they include ciprooxacin and levooxacin. c. they are nephrotoxic. d. they are used to treat respiratory, urinary, and sexually transmitted infections. e. they are readily absorbed from intestines.

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Question 15 Correct

Graded Exam 4

Which of the following is not true of the antigen-independent period of lymphocyte development?

4.50 points out of 4.50

Select one: a. Lymphocytes form from stem cells in the bone marrow. b. Random genetic rearrangements occur to produce different surface protein receptors. c. Mature lymphocytes populate lymphatic organs and encounter antigens. d. Lymphocytes with specicity for self are destroyed. e. Many lymphocytes with different specicities are formed.

Question 16

Each of the following contributes to emerging drug resistance except

Correct 4.50 points out of 4.50

Select one: a. overuse of antibiotics. b. improper use of antibiotics. c. multiple drug therapy. d. ingestion of antibiotics with animal feed. e. addition of antibiotics to common household products.

Question 17

In lab, inoculating loops are sterilized using ______.

Incorrect 0.00 points out of 4.50

Select one: a. moist heat b. chemicals c. incineration d. ltration e. gas sterilization

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Question 18

Graded Exam 4

Which of the following is not an aminoglycoside?

Correct 4.50 points out of 4.50

Select one: a. Streptomycin b. Gentamicin c. Tetracycline d. Amikacin e. Tobramycin

Question 19 Correct

_____ solution was introduced in the late 19th century for preventing gonococcal infections in a newborn's eyes after exposure to the mother's infected birth canal.

4.50 points out of 4.50

Select one: a. Merthiolate b. Triclosan c. Betadine d. Silver nitrate e. Zinc oxide

Question 20 Correct 4.50 points out of 4.50

The primary advantage of genotypic analysis for identication is that Select one: a. it is easier than any other method. b. it is less expensive than other methods. c. it is widely available. d. culturing of the organism is not required.

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