Nokea
A family member asks if vitamin C will prevent aging. The nurse considers which theory?
- A. Free radical theory
- B. Immunological theory
- C. Oxidative stress theory
- D. Telomere theory
Correct Answer: A
Rationale: The correct answer is A: Free radical theory. Vitamin C is thought to prevent aging by combatting free radicals, which are highly reactive molecules that can damage cells and contribute to aging. Vitamin C acts as an antioxidant, neutralizing free radicals and protecting cells from oxidative damage. Immunological theory (B) focuses on the role of the immune system in aging. Oxidative stress theory (C) is related to free radical theory but does not specifically address the role of vitamin C. Telomere theory (D) pertains to the shortening of telomeres, which are protective structures at the end of chromosomes, but is not directly related to the role of vitamin C in preventing aging.
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The home care nurse is visiting an older female client whose husband died 6 months ago. What behavior by the client indicates ineffective coping?
- A. Neglecting personal grooming
- B. Looking at old pictures
- C. Participating in senior citizens' program
- D. Visiting her husband's grave
Correct Answer: A
Rationale: The correct answer is A because neglecting personal grooming indicates a lack of self-care, which is a common sign of ineffective coping after the loss of a loved one. This behavior suggests the client may be struggling emotionally and unable to engage in basic self-care tasks. Looking at old pictures, participating in social activities, and visiting the husband's grave are all healthy coping mechanisms that can help the client process her grief and maintain connections with her late husband.
________ is a factor that contributes to a high incidence of falls in the elderly.
- A. increased muscle mass and tone
- B. high likelihood of orthostatic hypotension upon rising quickly
- C. increasing acuity in eyesight in dim light
- D. constipation
Correct Answer: B
Rationale: The correct answer is B: high likelihood of orthostatic hypotension upon rising quickly. Orthostatic hypotension is a common issue in the elderly, causing a sudden drop in blood pressure when standing up quickly, leading to dizziness and falls. This factor directly contributes to the high incidence of falls in the elderly. Increased muscle mass and tone (A) actually reduce the risk of falls, while improving eyesight in dim light (C) would decrease the risk. Constipation (D) is not directly related to falls in the elderly.
What is the most significant predictor of successful aging in older adults?
- A. Financial security
- B. Physical fitness and health
- C. Social engagement and support
- D. Mental resilience
Correct Answer: C
Rationale: The correct answer is C: Social engagement and support. Social engagement has been identified as a crucial factor in successful aging, as it contributes to emotional well-being, cognitive function, and overall quality of life. Older adults with strong social networks tend to have better physical and mental health outcomes. Social support can help individuals cope with stress, reduce feelings of loneliness and isolation, and provide a sense of purpose and belonging. Financial security (A) is important but not the most significant predictor. Physical fitness and health (B) are essential but do not solely determine successful aging. Mental resilience (D) is valuable, but the social aspect plays a more significant role in aging successfully.
Tuberculosis
- A. can be spread by persons who have positive skin tests and no symptoms
- B. presents a higher risk for clients who take immunosuppressant medications
- C. is caused by a virus related to HIV
- D. in the early stages, causes the client to gain weight and be short of breath
Correct Answer: B
Rationale: The correct answer is B because tuberculosis is an infectious bacterial disease that primarily affects the lungs. Clients taking immunosuppressant medications have weakened immune systems, making them more susceptible to developing active tuberculosis. This is due to the fact that the immune system is less able to fight off the bacteria causing tuberculosis. Choices A, C, and D are incorrect because tuberculosis is not spread by persons with positive skin tests and no symptoms, it is caused by bacteria (Mycobacterium tuberculosis) not a virus related to HIV, and it typically causes weight loss and not weight gain in the early stages.
Mr. J has been admitted to the hospital from her own home. The admitting nurse notes that the patient has severe edema in the lower extremities, no hair on the legs, and ulcerations on her feet. These signs and symptoms are most likely indications of:
- A. A diet low in protein
- B. Exposure to the cold from a lack of heat
- C. Frequent falls and injuries because of an unsteady gait
- D. Circulatory problems related to age and a chronic illness
Correct Answer: D
Rationale: The correct answer is D: Circulatory problems related to age and a chronic illness. Severe edema, hair loss on the legs, and foot ulcerations are indicative of poor circulation, often seen in conditions like peripheral artery disease. Age and chronic illnesses can contribute to circulatory issues. A diet low in protein (choice A) would not directly cause these symptoms. Exposure to cold (choice B) would not explain the specific symptoms mentioned. Frequent falls (choice C) do not align with the symptoms provided.