Nursing Elites

1. A patient who was frequently homeless over the past several years has begun a drug regimen consisting solely of isoniazid (INH). What is this patient's most likely diagnosis?

• A. Active tuberculosis
• B. Latent tuberculosis
• C. Mycobacterium avium complex
• D. Human immunodeficiency virus

Correct answer: A

Rationale: The correct answer is A: Active tuberculosis. Given the patient's history of homelessness and initiation of isoniazid (INH) treatment, the most likely diagnosis is active tuberculosis. Isoniazid is a first-line medication used in the treatment of active tuberculosis. Latent tuberculosis (choice B) would not typically necessitate treatment with isoniazid alone. Mycobacterium avium complex (choice C) is not typically treated with isoniazid alone. Human immunodeficiency virus (choice D) is a risk factor for developing tuberculosis but is not the primary diagnosis in this patient scenario.

2. A 20-year-old male shoots his hand with a nail gun while replacing roofing shingles. Which of the following cell types would be the first to aid in killing bacteria to prevent infection in his hand?

• A. Eosinophils
• B. Neutrophils
• C. Leukotrienes
• D. Monocytes

Correct answer: B

Rationale: Neutrophils are the first responders to bacterial infections. When there is a breach in the skin like in this scenario, neutrophils are quickly recruited to the site of injury to phagocytize and kill bacteria. Eosinophils are primarily involved in parasitic infections and allergic reactions, making choice A incorrect. Leukotrienes are lipid mediators involved in inflammation but are not cells, so choice C is incorrect. Monocytes are precursors to macrophages and play a role in immune response, but they are not the first cells to arrive at the site of a bacterial infection, making choice D incorrect.

3. 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.

4. The unique clinical presentation of a 3-month-old infant in the emergency department leads the care team to suspect botulism. Which assessment question posed to the parents is likely to be most useful in the differential diagnosis?

• A. Has your child received all recommended vaccinations?
• B. Has your child been feeding poorly or showing signs of constipation?
• C. Has your child been exposed to any sick individuals?
• D. Has your child been displaying signs of respiratory distress?

Correct answer: B

Rationale: The correct answer is B. Poor feeding and constipation are common early symptoms of infant botulism, which is caused by a neurotoxin that impairs muscle function. Option A is unrelated to the presentation of botulism. Option C does not directly relate to the symptoms of botulism. Option D is more indicative of respiratory issues rather than the constellation of symptoms seen in botulism.

5. A patient is administered isoniazid (INH) for tuberculosis. Which of the following adverse effects will result in discontinuation of the medication?

• A. Weight gain
• B. Jaundice
• C. Fever
• D. Arthralgia

Correct answer: B

Rationale: The correct answer is B: Jaundice. Isoniazid (INH) is known to cause hepatotoxicity, which can manifest as jaundice. Jaundice is a serious adverse effect that warrants immediate discontinuation of the medication to prevent further liver damage. Weight gain, fever, and arthralgia are not typically associated with isoniazid use and would not necessitate discontinuation of the medication.

Similar Questions