Robert, a 55-year-old man with a family history of colorectal cancer, reports no symptoms during his routine check-up. What should the healthcare provider recommend based on his family history?

Dietary consultation

No action, as he has no symptoms

A rectal examination

Colorectal cancer screening

Answer and Explanation

The Correct Answer is D

A.   While dietary consultation may be beneficial for overall health, colorectal cancer screening is more relevant given Robert's family history.
B.   Colorectal cancer screening is recommended for individuals with a family history of colorectal cancer, regardless of symptoms.
C.   A rectal examination alone is not sufficient for colorectal cancer screening; additional screening modalities such as colonoscopy or fecal occult blood testing are needed.
D.   Colorectal cancer screening is recommended for individuals with a family history of colorectal cancer, starting at an earlier age and possibly with more frequent intervals than for those without a family history.

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Correct Answer is C

Explanation

A. This describes the humoral immune response, where B lymphocytes produce antibodies against the virus.
B. This describes the systemic effects of inflammation, which can occur in both humoral and cell-mediated responses.
C. This accurately describes the cell-mediated immune response, where T lymphocytes directly target and kill infected cells.
D. The cell-mediated immune response can occur independently of changes in white blood cell (WBC) count.

A. 15 to 20 mm Hg B. 20 to 25 mm Hg C. 10 to 15 mm Hg D. 25 to 30 mm Hg

Correct Answer is B

Explanation

A. A CO2 level lower than 20 mm Hg can cause cerebral vasoconstriction and ischemia.

B. The target CO2 level for patients with closed head injury is 20 to 25 mm Hg, which corresponds to a mild hypocapnia that reduces intracranial pressure and improves cerebral blood flow.
C. A CO2 level lower than 20 mm Hg can cause cerebral vasoconstriction and ischemia.
D. A CO2 level higher than 25 mm Hg can increase intracranial pressure and worsen brain edema.

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Robert, a 55-year-old man with a family history of colorectal cancer, reports no symptoms during his routine check-up. What should the healthcare provider recommend based on his family history?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

While caring for a patient undergoing treatment for a viral infection, the nurse explains the differences between humoral and cell-mediated immune responses. Which statement accurately describes the cell-mediated immune response?

Correct Answer is C

Explanation

Maria, 21, with a closed head injury is unconscious and on mechanical ventilation. Her ABG results show a CO2 level of 35 mm Hg. What should be the target CO2 level to optimize brain perfusion?

Correct Answer is B

Explanation

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