Nursing Elites

1. A teacher in a preschool is diagnosed with giardiasis. Which of the following medications will be administered to treat the diarrhea and abdominal distention?

• A. Sulfasalazine (Azulfidine)
• B. Metronidazole (Flagyl)
• C. Trimethoprim–sulfamethoxazole (Bactrim)
• D. Doxycycline (Vibramycin)

Correct answer: B

Rationale: The correct answer is B. Metronidazole (Flagyl) is the drug of choice for treating giardiasis, which is a common cause of diarrhea and abdominal distention. Sulfasalazine (Choice A) is used to treat inflammatory bowel disease. Trimethoprim–sulfamethoxazole (Choice C) is commonly used for urinary tract infections and Pneumocystis jirovecii pneumonia. Doxycycline (Choice D) is commonly used to treat various bacterial infections but is not the first-line treatment for giardiasis.

2. A nurse is teaching a patient about the use of raloxifene (Evista) for the prevention of osteoporosis. What is the primary therapeutic action of this medication?

• A. It decreases the absorption of calcium from the intestines.
• B. It decreases bone resorption and increases bone density.
• C. It increases the excretion of calcium through the kidneys.
• D. It stimulates the formation of new bone.

Correct answer: B

Rationale: The correct answer is B. Raloxifene, a selective estrogen receptor modulator (SERM), works by decreasing bone resorption and increasing bone density. This action helps in preventing osteoporosis by maintaining bone strength. Choice A is incorrect as raloxifene does not affect the absorption of calcium from the intestines. Choice C is incorrect as raloxifene does not increase the excretion of calcium through the kidneys. Choice D is incorrect as raloxifene does not directly stimulate the formation of new bone; instead, it primarily works by reducing bone loss.

3. A client with multiple sclerosis (MS) is experiencing a relapse. Which of the following factors is most likely contributing to the relapse?

• A. Taking an over-the-counter multivitamin
• B. Experiencing high levels of emotional stress
• C. Getting a flu shot
• D. Engaging in strenuous physical activity

Correct answer: B

Rationale: Emotional stress can trigger a relapse in multiple sclerosis by exacerbating symptoms. While taking an over-the-counter multivitamin and getting a flu shot are generally safe, they are not typically known to trigger MS relapses. Engaging in strenuous physical activity, if done carefully, can actually have benefits for individuals with MS by improving strength and mobility, so it is less likely to be the cause of a relapse.

4. A home care nurse visits a patient who is bed-bound and lives in a 12-story high-rise apartment complex. Her daughter states that she has small red skin lesions over her body and she has been itching. What parasite is most likely responsible for this patient's skin lesions?

• A. Sarcoptes scabiei
• B. Pediculus humanus corporis
• C. Pediculus humanus pubis
• D. Toxoplasma gondii

Correct answer: A

Rationale: The correct answer is Sarcoptes scabiei. Sarcoptes scabiei is a parasitic mite that causes scabies, characterized by small red skin lesions and intense itching. Pediculosis corporis (choice B) refers to body lice, which do not cause the specific symptoms described. Pediculosis pubis (choice C) is caused by pubic lice and presents differently from the symptoms described. Toxoplasma gondii (choice D) is a parasite that causes toxoplasmosis, but it does not typically manifest with small red skin lesions and itching.

5. In a patient with HIV infected with Mycobacterium avium complex from an indoor pool, which of the following medications is the recommended treatment for MAC?

• A. Clarithromycin
• B. Isoniazid (INH)
• C. Rifabutin
• D. Azithromycin

Correct answer: A

Rationale: The correct answer is Clarithromycin. Clarithromycin is one of the recommended medications for treating Mycobacterium avium complex (MAC) infections in patients with HIV. It is a macrolide antibiotic that is effective against MAC. Isoniazid (INH) is used to treat tuberculosis, not MAC. Rifabutin is another medication used in the treatment of MAC infections, but clarithromycin is preferred as a first-line agent. Azithromycin is also used in the treatment of MAC infections; however, clarithromycin is more commonly recommended due to its efficacy and safety profile.

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