Nursing Elites

1. After teaching the students about B cells, which statement indicates teaching was successful? B cells are originally derived from cells of the:

• A. Bone marrow
• B. Lymph nodes
• C. Gut-associated lymphoid tissue
• D. Thymus

Correct answer: A

Rationale: The correct answer is A: Bone marrow. B cells are originally derived from cells of the bone marrow. Bone marrow is the primary site where B cells develop and mature. Lymph nodes (choice B), gut-associated lymphoid tissue (choice C), and the thymus (choice D) are involved in the immune response but are not the primary site of origin for B cells.

2. A male patient is being treated with testosterone gel for hypogonadism. What important instruction should the nurse provide regarding the application of this medication?

• A. Apply the gel to the chest or upper arms.
• B. Apply the gel to the lower abdomen or thighs.
• C. Apply the gel to the face and neck.
• D. Apply the gel to the scalp and back.

Correct answer: A

Rationale: The correct answer is to apply the testosterone gel to the chest or upper arms. This is important to minimize the risk of transfer to others. Applying the gel to the lower abdomen, thighs, face, or neck can increase the risk of transfer to others, especially women and children who should avoid contact with testosterone gel. Applying it to the scalp and back is not recommended as these areas are not suitable for absorption of the medication.

3. In which of the following patients may the administration of a live vaccine be contraindicated?

• A. Patient with renal insufficiency
• B. Patient with hepatic failure
• C. Patient taking steroid therapy
• D. Patient over the age of 65 years

Correct answer: C

Rationale: The correct answer is C. The administration of live vaccines may be contraindicated in patients taking steroid therapy. Steroids can suppress the immune system, reducing the effectiveness of live vaccines. Patients with renal insufficiency or hepatic failure can typically receive live vaccines as these conditions are not direct contraindications. Age alone, such as being over 65 years old, is not a contraindication for live vaccines unless there are other specific health considerations. Therefore, the patient taking steroid therapy is the most likely candidate for whom the administration of a live vaccine would be contraindicated.

4. Which symptoms are typical of asthma?

• A. Chest pain; cough
• B. Diarrhea; wheezing
• C. Wheezing; dyspnea
• D. Tachypnea; constipation

Correct answer: C

Rationale: The correct answer is C: Wheezing and dyspnea are typical symptoms of asthma. Wheezing refers to a high-pitched whistling sound while breathing, and dyspnea is shortness of breath. These symptoms are classic signs of airway obstruction and inflammation seen in asthma. Choice A is incorrect as chest pain is not a typical symptom of asthma, though coughing can occur. Choice B is incorrect as diarrhea is not associated with asthma, while wheezing is a common symptom. Choice D is incorrect as tachypnea (rapid breathing) can occur in asthma, but constipation is not a typical symptom.

5. Why is the administration of benzene hexachloride (Lindane) for the treatment of scabies applied in small quantities?

• A. Excessive applications will lead to central nervous system toxicity.
• B. Excessive applications will cause irritation, rash, and inflammation.
• C. Excessive applications will cause headaches, dizziness, and diarrhea.
• D. Excessive applications will lead to anorexia and cachexia.

Correct answer: A

Rationale: The rationale for instructing the patient to apply benzene hexachloride (Lindane) in small quantities for scabies treatment is that excessive applications can lead to central nervous system toxicity. Lindane is a neurotoxin, and overuse or incorrect application can result in adverse effects on the central nervous system, such as seizures, dizziness, and even death. Choices B, C, and D are incorrect because they do not reflect the specific toxic effects associated with Lindane, which primarily affects the central nervous system rather than causing skin irritation, gastrointestinal symptoms, or metabolic issues.

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