Which patient is at the greatest risk for developing pressure ulcers?

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Basic Immune System Quizlet Questions

Question 1 of 5

Which patient is at the greatest risk for developing pressure ulcers?

A. A 42-year-old obese woman with type 2 diabetes B. A 78-year-old man who is confused and malnourished C. A 30-year-old man who is comatose following a head injury D. A 65-year-old woman who has urge and stress incontinence

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 2 of 5

How does an antigen stimulate an immune response?

A. It is captured, processed, and presented to a lymphocyte by a macrophage. B. It circulates in the blood, where it comes in contact with circulating lymphocytes. C. It is a foreign protein that has antigenic determinants different from those of the body. D. It combines with larger molecules that are capable of stimulating production of antibodies.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

What describes the occurrence of a type IV or delayed hypersensitivity transplant reaction?

A. Antigen links with specific IgE antibodies bound to mast cells or basophils releasing chemical mediators B. Cellular lysis or phagocytosis through complement activation following antigen-antibody binding on cell surfaces C. Sensitized T lymphocytes attack antigens or release cytokines that attract macrophages that cause tissue damage D. Antigens combined with IgG and IgM too small to be removed by mononuclear phagocytic system deposit in tissue and cause fixation of complement

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

Before the patient receives a kidney transplant, a crossmatch test is ordered. What does a positive crossmatch indicate?

A. Matches tissue types for a successful transplantation B. Determines paternity and predicts risk for certain diseases C. Establishes racial background and predicts risk for certain diseases D. Cytotoxic antibodies to the donor contraindicate transplanting this donor’s organ

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

A 78-year-old patient has developed Haemophilus influenzae. In addition to standard precautions, what should the nurse use to protect herself and other patients when working within 3 feet of the patient?

A. Mask B. Gown C. Gloves D. Shoe covers

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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