Which theory of aging does the student learn is related to problems with DNA transcription?

a. Radical theory
b. Error theory
c. Cross linkage theory
d. Wear-and-tear theory


B
The error theory poses that errors in DNA transcription lead to aging. The radical theory views the effects of free radicals as critical to aging. The cross linkage theory states that normally separated molecular structures are bound together through chemical reactions and that this interferes with metabolic processes. The wear-and-tear theory postulates that normal activity causes wear and tear on the body, leading to aging.

Nursing

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The nursing process is a sequential method of problem solving that nurses use and includes which steps?

a. Assessment, treatment, planning, evaluation, discharge, and follow-up b. Admission, assessment, diagnosis, treatment, and discharge planning c. Admission, diagnosis, treatment, evaluation, and discharge planning d. Assessment, diagnosis, outcome identification, planning, implementation, and evaluation

Nursing

An elderly client with limited mobility is being treated for a pressure ulcer that developed while she was in a residential facility. A hydrocolloid dressing has been applied to the client's ulcer in order to ensure a moist wound environment

What is the primary rationale for keeping a wound moist? A) Anaerobic bacteria cannot survive in a moist environment. B) New body cells grow most quickly in a moist environment. C) Fluid in a moist wound fills "dead space" in the wound, preventing infection. D) Cellular debris dissolves more quickly in a moist environment.

Nursing

The tongue assists with which of the following? Select all that apply

a. Speech d. Swallowing b. Breathing e. Taste sensation c. Mastication f. Mechanical cleansing of the teeth

Nursing

A nurse manager questions the true difference between primary nursing and total patient care. After careful consideration of both models, the nurse manager concludes that primary nursing differs significantly from total patient care in:

a. Breadth of nursing knowledge and exper-tise required. b. Intention to provide holistic nursing. c. Degree of task orientation. d. Levels and types of assessment.

Nursing