Nursing Elites

1. A client with a history of chronic alcoholism presents to the emergency department with a complaint of double vision. Which cranial nerve is most likely involved?

• A. Cranial nerve I (Olfactory)
• B. Cranial nerve III (Oculomotor)
• C. Cranial nerve VI (Abducens)
• D. Cranial nerve VII (Facial)

Correct answer: C

Rationale: The correct answer is Cranial nerve VI (Abducens). Chronic alcoholism can lead to damage to the abducens nerve, which controls the lateral movement of the eye. This damage can result in symptoms like double vision. Cranial nerve I (Olfactory) is responsible for the sense of smell and is not related to eye movement. Cranial nerve III (Oculomotor) controls most of the eye movements but is less likely to be affected in chronic alcoholism than the abducens nerve. Cranial nerve VII (Facial) is responsible for facial movements and is not associated with double vision.

2. What symptoms would the nurse expect to see in a client with chronic obstructive pulmonary disease (COPD)?

• A. Dyspnea on exertion
• B. Normal lung sounds
• C. Normal arterial blood gases
• D. Onset of the disease during young adulthood

Correct answer: A

Rationale: The correct answer is A: Dyspnea on exertion. COPD typically manifests with symptoms like dyspnea on exertion due to impaired lung function. This symptom is a result of the airways being obstructed and the lungs not being able to expel air effectively. Choices B and C are incorrect because in COPD, abnormal lung sounds such as wheezing, crackles, or diminished breath sounds are often heard upon auscultation, and arterial blood gases are usually abnormal, showing low oxygen levels and high carbon dioxide levels. Choice D is incorrect as COPD is more commonly diagnosed in individuals over 40 who have a history of smoking or exposure to lung irritants.

3. What lab results would be noted in a client with leukocytosis?

• A. Increased white blood cell count
• B. Increased platelet count
• C. Decreased white blood cell count
• D. Decreased platelet count

Correct answer: A

Rationale: Leukocytosis is a condition characterized by an elevated white blood cell count, typically in response to infection or inflammation. Therefore, the correct answer is an increased white blood cell count (Choice A). Increased platelet count (Choice B) is not a typical finding in leukocytosis. Choices C and D, decreased white blood cell count and decreased platelet count respectively, are opposite to what would be expected in leukocytosis and are therefore incorrect.

4. Why does multiple sclerosis manifest as asymmetrical and in different parts of the body?

• A. Autoreactive lymphocytes are causing diffuse patchy damage to the myelin sheath in the central nervous system.
• B. Acetylcholine receptors are destroyed by immunoglobulin G.
• C. Autoreactive T lymphocytes cause progressive loss of neurons in the substantia nigra.
• D. Cortical motor cells degenerate.

Correct answer: C

Rationale: Multiple sclerosis is characterized by the immune system mistakenly attacking the myelin sheath in the central nervous system. This results in the formation of lesions that can occur in different parts of the central nervous system, leading to varied symptoms depending on the location of the damage. Choice A is the correct answer because it accurately describes the pathophysiology of multiple sclerosis. Choices B, C, and D are incorrect because they describe mechanisms or locations that are not associated with the pathogenesis of multiple sclerosis.

5. A child's thymus gland is fully formed and proportionately larger than an adult's. Which of the following processes that contribute to immunity takes place in the thymus gland?

• A. Differentiation of B cells
• B. Production of natural killer (NK) cells
• C. Proliferation of T cells
• D. Filtration of antigens from the blood

Correct answer: C

Rationale: The correct answer is C: Proliferation of T cells. The thymus gland is responsible for the maturation and proliferation of T cells, which play a crucial role in adaptive immunity. Option A, differentiation of B cells, is incorrect because B cell maturation primarily occurs in the bone marrow. Option B, production of natural killer (NK) cells, is incorrect as NK cells are mainly produced in the bone marrow and lymph nodes. Option D, filtration of antigens from the blood, is incorrect as antigen filtration is not a primary function of the thymus gland.

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