Nursing Elites

1. What is the primary function of the kidneys in acid-base balance?

• A. The kidneys remove hydrogen ions and retain bicarbonate ions.
• B. The kidneys convert ammonia into urea, which is excreted in the urine.
• C. The kidneys produce aldosterone to regulate sodium levels.
• D. The kidneys secrete renin to regulate blood pressure.

Correct answer: A

Rationale: The correct answer is A. The kidneys are crucial in maintaining acid-base balance by removing hydrogen ions to decrease acidity and retaining bicarbonate ions to increase alkalinity. Choice B is incorrect because the conversion of ammonia into urea is related to nitrogen waste excretion, not acid-base balance. Choice C is incorrect as aldosterone regulates sodium levels, not acid-base balance. Choice D is also incorrect as renin is involved in regulating blood pressure, not acid-base balance.

2. Anemia of chronic inflammation is generally classified as:

• A. Hypochromic and microcytic.
• B. Hypochromic and macrocytic.
• C. Normochromic and microcytic.
• D. Normochromic and normocytic.

Correct answer: D

Rationale: Anemia of chronic inflammation is typically characterized by normochromic (normal hemoglobin content) and normocytic (normal cell size) red blood cells. Choice A, hypochromic and microcytic, is incorrect because hypochromic refers to reduced hemoglobin content and microcytic refers to smaller than normal red blood cells, which are not typically seen in anemia of chronic inflammation. Choice B, hypochromic and macrocytic, is also incorrect as macrocytic refers to larger than normal red blood cells. Choice C, normochromic and microcytic, is incorrect because microcytic red blood cells are smaller than normal. Therefore, the correct classification for anemia of chronic inflammation is normochromic and normocytic.

3. Two people experience the same stressor yet only one is able to cope and adapt adequately. An example of the person with an increased capacity to adapt is the one with:

• A. A sense of purpose in life
• B. Circadian rhythm disruption
• C. Age-related renal dysfunction
• D. Excessive weight gain or loss

Correct answer: A

Rationale: A strong sense of purpose in life is associated with better stress coping mechanisms, which can enhance a person's capacity to adapt. Having a clear sense of purpose provides individuals with motivation, direction, and resilience to face challenges. Choices B, C, and D are not directly related to an increased capacity to adapt to stress. Circadian rhythm disruption, age-related renal dysfunction, and excessive weight gain or loss may have negative impacts on overall well-being and stress management.

4. A patient underwent an open cholecystectomy 4 days ago, and her incision is now in the proliferative phase of healing. The nurse knows that the next step in the process of wound healing is:

• A. Inflammation
• B. Maturation
• C. Remodeling
• D. Coagulation

Correct answer: C

Rationale: In the context of wound healing, after the proliferative phase comes the remodeling phase. During the remodeling phase, the wound gains strength as collagen fibers reorganize, and the scar matures. Inflammation is the initial phase of healing, where the body responds to injury with redness, swelling, and warmth. Maturation is the final stage where the scar tissue continues to undergo changes but is not the immediate next step after the proliferative phase. Coagulation is the process of blood clot formation and is not a phase in wound healing.

5. How does tamsulosin (Flomax) primarily benefit male patients with benign prostatic hyperplasia (BPH)?

• A. Relaxation of the muscles in the prostate and bladder neck, leading to improved urinary flow.
• B. Reduction in prostate size and improvement in urinary symptoms.
• C. Increase in urine flow and relief of urinary obstruction.
• D. Improvement in erectile function.

Correct answer: A

Rationale: The correct answer is A: Tamsulosin works by relaxing the muscles in the prostate and bladder neck, which helps improve urinary flow in patients with BPH. This relaxation reduces the symptoms associated with BPH, such as urinary hesitancy, urgency, and frequency. Choice B is incorrect because tamsulosin does not directly reduce the size of the prostate gland. Choice C is incorrect as while tamsulosin does improve urine flow, its primary mechanism of action is through muscle relaxation rather than directly relieving obstruction. Choice D is incorrect as tamsulosin is not indicated for improving erectile function; its main therapeutic effect is targeted towards urinary symptoms related to BPH.

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