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ATI RN · ATI Medical Surgical · Adaptive Immune System Quizlet

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Viral antigenic shift

A. Is caused by multiple random mutations

B. Is caused by a single mutation

C. It affects only internal viral proteins not recognized by preexisting antibodies

D. It refers to the appearance of new HA variants not recognized by preexisting antibodies

Expert Explanatory Rationale

Correct Answer: It refers to the appearance of new HA variants not recognized by preexisting antibodies

Question 2 of 5

A patient's breast tumor originates from embryonal ectoderm. It has moderate dysplasia and moderately differentiated cells. It is a small tumor with minimal lymph node involvement and no metastases. What is the best description of this tumor?

A. Sarcoma,grade II,T3 N4 M0

B. Leukemia,grade I,T1 N2 M1

C. Carcinoma,grade II,T1 N1 M0

D. Lymphoma,grade III,T1 N0 M

Expert Explanatory Rationale

Correct Answer: Carcinoma,grade II,T1 N1 M0

Question 3 of 5

Which of the following is an important nursing intervention for HIV-positive clients?

A. Suggesting the use of herbal medications and alternate therapies.

B. Suggesting the use of psychostimulants such as methamphetamine.

C. Advising client to avoid clinical drug trials.

D. Providing referral to support groups and resources for information.

Expert Explanatory Rationale

Correct Answer: Providing referral to support groups and resources for information.

Question 4 of 5

The researcher that postulated the existence of 'pattern recognition receptors' on innate cells was:

A. Susumu Tonegawa

B. Ilya Metchnikoff

C. Charles Janeway

D. Ralph Steinman

Expert Explanatory Rationale

Correct Answer: Charles Janeway

Question 5 of 5

What is the primary function of lymph nodes?

A. Producing red blood cells

B. Filtering lymph and facilitating immune responses

C. Synthesizing antibodies

D. Generating cytokines

Expert Explanatory Rationale

Correct Answer: Filtering lymph and facilitating immune responses

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