Nursing Elites

1. After a patient is exposed to a specific antigen, B cells will differentiate into:

• A. B cytotoxic cells
• B. Plasma cells
• C. Bursal cells
• D. Clonal equivalents

Correct answer: B

Rationale: After exposure to a specific antigen, B cells undergo differentiation into plasma cells. Plasma cells are responsible for producing antibodies in response to the antigen. Choice A ('B cytotoxic cells') is incorrect because B cells do not differentiate into cytotoxic cells; cytotoxic cells are typically associated with T cells. Choice C ('Bursal cells') is incorrect as bursal cells are specific to birds and not relevant to human immune responses. Choice D ('Clonal equivalents') is incorrect as it does not describe the differentiation process of B cells exposed to antigens.

2. Cushing syndrome is characterized by which disorder?

• A. Hypocortisolism
• B. Exophthalmos
• C. Hypercortisolism
• D. Hyperpigmentation

Correct answer: C

Rationale: Cushing syndrome is characterized by hypercortisolism, which is an excessive amount of cortisol in the body. Choice A, 'Hypocortisolism,' is incorrect as Cushing syndrome is associated with elevated cortisol levels. Choice B, 'Exophthalmos,' refers to bulging eyes and is not a characteristic feature of Cushing syndrome. Hyperpigmentation, as mentioned in choice D, can be present in Cushing syndrome due to increased ACTH levels stimulating melanocytes, but it is not the defining characteristic of the syndrome.

3. What can multiple dark bands on the nails indicate?

• A. They are considered a normal variant.
• B. They can be associated with malignant melanoma.
• C. They are indicative of a nail fungus.
• D. They are associated with aging.

Correct answer: B

Rationale: Multiple dark bands on the nails can be associated with malignant melanoma, a serious type of skin cancer. While dark bands on the nails can sometimes be a normal variant, they should not be ignored as they could also be a sign of a serious condition like melanoma. Nail fungus typically presents with different symptoms such as thickened, discolored, or brittle nails. Dark bands on the nails are not directly associated with aging.

4. A patient is prescribed zanamivir (Relenza) to treat influenza B. The patient has a history of asthma. For which of the following symptoms should the nurse assess?

• A. Bradycardia
• B. Pneumonia
• C. Bronchospasm
• D. Pulmonary embolism

Correct answer: C

Rationale: The correct answer is C: Bronchospasm. Zanamivir (Relenza) is an inhaled medication used to treat influenza by reducing the severity and duration of symptoms. Patients with a history of asthma are at risk of bronchospasm as a potential side effect of zanamivir. Assessing for bronchospasm is crucial in this case to ensure the patient's safety and well-being. Choices A, B, and D are incorrect. Bradycardia, pneumonia, and pulmonary embolism are not commonly associated with zanamivir use in the treatment of influenza B, especially in a patient with a history of asthma.

5. In a postmenopausal woman, what condition can be prevented by administering estradiol (Estraderm)?

• A. Endometriosis
• B. Amenorrhea
• C. Osteoporosis
• D. Uterine cancer

Correct answer: C

Rationale: The correct answer is C: Osteoporosis. Estradiol, a form of estrogen, is used to prevent osteoporosis in postmenopausal women by maintaining bone density. Choice A, Endometriosis, is incorrect as estradiol is not used to prevent or treat this condition. Choice B, Amenorrhea, is not prevented by estradiol but rather may result from hormonal changes. Choice D, Uterine cancer, is not directly prevented by estradiol; in fact, long-term unopposed estrogen use can increase the risk of uterine cancer.

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