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ATI RN · ATI Medical Surgical · Basic Immune System Quizlet

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

What is the role of perforin released by NK cells?

A. Activating B cells

B. Forming pores in target cell membranes

C. Engulfing pathogens

D. Inducing inflammation

Expert Explanatory Rationale

Correct Answer: Forming pores in target cell membranes

Question 2 of 5

Innate behaviors are

A. under strong genetic control

B. performed in virtually the indifferent way by all individuals of a species

C. Sociobiology

D. the environment

Expert Explanatory Rationale

Correct Answer: under strong genetic control

Question 3 of 5

the characteristic of blood types AB is

A. a general receptor

B. a general donor

C. a receptor and donor

D. neither donating nor receptor

Expert Explanatory Rationale

Correct Answer: a general receptor

Question 4 of 5

The nurse is instructing a patient with rheumatoid arthritis about a prescribed exercise program. Which information should the nurse include?

A. Perform exercises every day, 3 to 10 times for every joint.

B. Perform exercises even if inflammation is present.

C. Perform exercises past the point of pain.

D. Perform twice the number of exercises the next day if one day is missed.

Expert Explanatory Rationale

Correct Answer: Perform exercises every day, 3 to 10 times for every joint.

Question 5 of 5

A small lesion is discovered in a patient's lung when an x-ray is performed for cervical spine pain. What is the definitive method of determining if the lesion is malignant?

A. Lung scan

B. Tissue biopsy

C. Oncofetal antigens in the blood

D. CT or positron emission tomography (PET) scan

Expert Explanatory Rationale

Correct Answer: Tissue biopsy

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