Nursing Elites

1. A male client with acquired immune deficiency syndrome (AIDS) and Pneumocystis carinii pneumonia has a CD4+ T cell count of 200 cells/microliter. The client asks the nurse why he keeps getting these massive infections. Which pathophysiologic mechanism should the nurse describe in response to the client's question?

• A. Bone marrow suppression of white blood cells causes insufficient cells to phagocytize organisms.
• B. Exposure to multiple environmental infectious agents overburdens the immune system until it fails.
• C. The humoral immune response lacks B cells that form antibodies and opportunistic infections result.
• D. Inadequate numbers of T lymphocytes are available to initiate cellular immunity and macrophages.

Correct answer: D

Rationale: With a CD4+ T cell count of 200 cells/microliter, the client's immune system is severely compromised, leading to opportunistic infections.

2. Parents of a 6-month-old child, who has just been diagnosed with iron deficiency anemia, ask why it was not diagnosed earlier. What would be the best response by the nurse?

• A. Are you sure your child has iron deficiency anemia?
• B. This happens when the maternal stores of iron are depleted at about 6 months.
• C. This anemia is caused by blood loss.
• D. The child may not have had it for a long time.

Correct answer: B

Rationale: The best response by the nurse would be choice B: 'This happens when the maternal stores of iron are depleted at about 6 months.' Iron deficiency anemia becomes apparent at about 6 months of age in a full-term infant when the maternal stores of iron are depleted. Choice A is incorrect because it questions the diagnosis provided by the healthcare provider. Choice C is incorrect because iron deficiency anemia in infants is primarily due to insufficient iron intake rather than blood loss. Choice D is incorrect as iron deficiency anemia typically develops gradually due to inadequate iron intake.

3. The nurse is teaching a client about coronary artery disease (CAD) preventive health. Which behavior stated by the client indicates a need for additional information and teaching?

• A. Increasing physical activity.
• B. Eating a low-fat diet.
• C. Decreasing the number of cigarettes smoked per day.
• D. Monitoring blood pressure regularly.

Correct answer: C

Rationale: The correct answer is C. Decreasing the number of cigarettes smoked per day is not sufficient for CAD prevention. Smoking cessation is crucial in reducing the risk of CAD. While increasing physical activity, eating a low-fat diet, and monitoring blood pressure regularly are all positive behaviors for CAD prevention, quitting smoking should be emphasized due to its significant impact on cardiovascular health.

4. The cognitive impairment is classified into four levels based on the intelligence quotient (IQ). How is a child with an IQ of 45 classified?

• A. Within the normal low range
• B. Educable
• C. Trainable
• D. Severe

Correct answer: C

Rationale: A child with an IQ of 45 is classified as 'Trainable' in the context of cognitive impairment levels. This category is determined by an IQ range of 35 to 55. Choice A ('Within the normal low range') is incorrect as an IQ of 45 falls within the range associated with the 'Trainable' level, not the 'Normal low range.' Choice B ('Educable') is incorrect because this classification typically corresponds to individuals with slightly higher IQs that allow for academic progress with support. Choice D ('Severe') is incorrect as it does not align with the IQ level of 45, which falls within the 'Trainable' category.

5. What is the main characteristic of cystic fibrosis?

• A. Multiple upper respiratory infections
• B. An underproduction of exocrine glands
• C. Excessive, thick mucus
• D. An overproduction of thin mucus

Correct answer: C

Rationale: The main characteristic of cystic fibrosis is the production of excessive, thick mucus. This thick mucus leads to blockages in the airways, digestive system, and other organs. Choice A is incorrect because while individuals with cystic fibrosis are more prone to respiratory infections, the main characteristic is the mucus production. Choice B is incorrect as cystic fibrosis is characterized by the overproduction, not underproduction, of exocrine glands. Choice D is also incorrect as the mucus produced in cystic fibrosis is thick, not thin.

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