The nurse is providing education on epidemiology to a nursing student. Which of the following statements indicates the importance of epidemiology to the community health nurse? SELECT ALL THAT APPLY

Choice A: Administer corticosteroids. This is incorrect because corticosteroids are used to reduce inflammation and suppress the immune system, but they do not directly affect venous return, stiffness, or muscle strength and endurance.

Choice B: Turn and reposition every 2 hours. This is incorrect because turning and repositioning are important to prevent pressure ulcers and promote circulation, but they are not sufficient to maintain muscle strength and endurance. The client also needs active or passive exercises to prevent muscle atrophy and contractures.

Choice C: Administer interferon. This is incorrect because interferon is a type of immunomodulator that can reduce the frequency and severity of relapses in multiple sclerosis, but it does not directly affect venous return, stiffness, or muscle strength and endurance.

Choice D: Encourage range-of-motion exercises. This is correct because range-of-motion exercises can help increase venous return, prevent stiffness, and maintain muscle strength and endurance in clients with multiple sclerosis. Range-of-motion exercises can be performed actively by the client or passively by the nurse or a caregiver. They should be done at least twice a day to prevent complications such as contractures, spasticity, and pain.

Choice A reason: Fluconazole (Diflucan) is an antifungal medication that is used to treat infections caused by fungi, such as candidiasis, cryptococcosis, and histoplasmosis. It is not effective against anthrax, which is a bacterial infection caused by Bacillus anthracis.

Choice B reason: Ciprofloxacin (Cipro) is an antibiotic medication that belongs to the class of fluoroquinolones. It is used to treat various bacterial infections, including anthrax. It works by inhibiting the DNA synthesis of the bacteria and preventing them from multiplying. Ciprofloxacin is one of the recommended medications for post-exposure prophylaxis and treatment of anthrax, according to the Centers for Disease Control and Prevention (CDC).

Choice C reason: Varenicline (Chantix) is a medication that is used to help people quit smoking. It works by blocking the effects of nicotine on the brain and reducing the cravings and withdrawal symptoms. It has no role in the prevention or treatment of anthrax.

Choice D reason: Potassium iodide (KI) is a medication that is used to protect the thyroid gland from radioactive iodine in the event of a nuclear or radiological emergency. It works by saturating the thyroid with non-radioactive iodine and preventing it from absorbing radioactive iodine. It has no role in the prevention or treatment of anthrax.