What is the appropriate treatment for a patient diagnosed with blastomycosis?

• A. Fluconazole
• B. Amp B
• C. Voriconazole
• D. Ketoconazole

Answer: (B)

Blastomycosis is a fungal infection caused by the organism Blastomyces dermatitidis and can present with a variety of symptoms, often affecting the lungs and potentially disseminating to skin and bone. The treatment of choice for moderate to severe cases of blastomycosis is amphotericin B (often abbreviated as Amp B). This antifungal agent is a polyene that functions by binding to ergosterol, a component of fungal cell membranes, thereby creating pores that lead to cell death.

Amphotericin B is particularly effective for treating serious systemic fungal infections, such as blastomycosis, due to its rapid action and thorough penetration of infected tissues. It is typically employed in cases that are life-threatening or when the infection is disseminated, given its potency. Following the initial treatment with amphotericin B, patients may be switched to an oral antifungal medication like itraconazole for longer-term management or to complete the treatment course once the acute phase has been stabilized.

Options such as fluconazole, voriconazole, and ketoconazole are used for other fungal infections, but they do not have the same effectiveness against blastomycosis as amphotericin B does in its initial treatment phase. Thus, amphotericin B