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HESI LPN · HESI LPN Medical Surgical Nursing · HESI Immune System Disorders Quizlet

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The nurse is caring for a patient who has had a total hip replacement and is using an abductor wedge. For which finding should the nurse assess?

A. Muscle spasms

B. Alteration in peripheral circulation

C. Compression fracture

D. Appropriateness of the size of the wedge

Correct Answer: Alteration in peripheral circulation

Question 2 of 5

The epitopes recognized by T cells are always:

A. Conformational

B. Linear

C. On the antigen surface

D. Buried inside the antigen

Correct Answer: Linear

Question 3 of 5

Identify the correct statement(s). In prokaryotes:

A. Translation begins after transcription is finished.

B. Messenger RNA is not co-linear with the DNA template.

C. 5s, 16s, and 28s ribosomal RNA's are present.

D. 50s and 30s ribosomal subunits are necessary for protein synthesis.

Correct Answer:

Question 4 of 5

The process of somatic hypermutation:

A. Can lead to the formation of antibodies with higher affinity for the antigen

B. Occurs mainly in the CDR regions of immunoglobulin heavy and light chain genes

C. Occurs in germinal centres

D. All of the above are correct

Correct Answer: All of the above are correct

Question 5 of 5

Which of the following is a feature of antigen recognition by B cells?

A. Their antigen receptors are never secreted

B. Their antigen receptors recognize a fragment of protein in combination with an MHC molecule

C. Their receptors each have two identical antigen binding sites

D. They recognize pattern associated molecular structures (PAMPs) that are unique to a particular pathogen

Correct Answer: Their receptors each have two identical antigen binding sites

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