Anti-fungals Flashcards
In the treatment of fungal infections
a. IV amphotericin B is nephrotoxic
A. True, amphotericin B is nephrotoxic and causes hypokalaemia and hypomagnaesemia
In the treatment of fungal infections
b. IV fluconazole is contraindicated in systemic candidiasis
B. False, IV fluconazole is indicated for systemic candidiasis, vaginal and oral candidiasis and cryptococcal meningitis
In the treatment of fungal infections
c. nystatin drops are contraindicated for use in babies
C. False, nystatin are safe for infant use
In the treatment of fungal infections
d. terbinafine is used to treat athletes foot
D. True
In the treatment of fungal infections
e. voriconazole is used to treat Aspergillus infections
E. True, voriconazole is use to treat aspergillus and candidiasis
Azole antifungals
a. inhibit fungal lanosterol 14-demethylase
a. True, azole antifungals MOA: Inhibits fungal P450 enzymes, inhibits ergosterol synth (cell membrane) by inhibiting 14-demethylase
Azole antifungals
b. cause congenital skeletal malformations when used in the first trimester of pregnancy
b. True
Azole antifungals
c. fluconazole induces cytochrome P450 enzymes
c. False, azole antifungals inhibit cytochrome p450 enzymes
Azole antifungals
d. itraconazole is hepatotoxic
d. True, only fluconazole isn’t as its metabolized by the kidneys
Azole antifungals
e. fluconazole is effective against Aspergillus infections
e. False, aspergillus is treated with voriconazole or amphotericin B
Topical antifungals
a. terbinafine increases fungal ergosterol synthesis
a. False, inhibits ergosterol synth (cell membrane) by inhibiting squalene epoxidase
Topical antifungals
b. nystatin is used in the treatment of oral candidiasis in infants
b. True, safe in infants
Topical antifungals
c. clotrimazole is used in the treatment of vulvovaginal candidiasis
c. True, clotrimazole is indicated in the treatment of dermatophytes, oral and vulvovaginal candidiasis
Topical antifungals
d. terbinafine is used as first line therapy in the treatment of athletes foot
d. True
Topical antifungals
e. terbinafine is ineffective against Tinea corporis
e. False, terbinafine can be used to treat tinea corporis, pedis and cruris
Antifungal agents
a. iv amphotericin B is used to treat systemic candidiasis
a. True, amphotericin B is indicated for Systemic Candida, Cryptococcus, Aspergillus, Histoplasma, Blastomyces, Coccidioidis
Antifungal agents
b. fluconazole is used to treat dermatophyte infections
b. False, used to treat Systemic candidiasis Vaginal & oropharyngeal candidiasis (not resp to topical tx Cryptococcal Meningitis
Antifungal agents
c. nystatin drops are used to treat intestinal candidiasis in babies
c. True
Antifungal agents
d. clotrimazole is contraindicated for use in recurrent vaginal candidiasis
d. False, clotrimazole is indicated for use in recurrent vaginal candidiasis
Antifungal agents
e. terbinafine is used to treat cryptococcal meningitis
e. False, amphotericin b or fluconazole
Topical antifungals
a. terbinafine stimulates fungal squalene epoxidase activity
a. False, terbinafine is an allyl amine that MOA: inhibits ergosterol synth (cell membrane) by inhibiting squalene epoxidase
Topical antifungals
b. nystatin is absorbed through the GIT
b. False, Nystatin is not absorbed into the systemic circulation
Topical antifungals
c. clotrimazole is used in the treatment of Tinea corporis
c. True, clotrimazole is used in the treat of dermatophytes (Tinea), oral/vaginal candidiasis
Topical antifungals
d. clotrimazole is used in the treatment of cutaneous candidiasis
d. True, clotrimazole is used in the treat of dermatophytes (Tinea), oral/vaginal candidiasis
Topical antifungals
e. terbinafine is ineffective against Tinea pedis (athletes foot)
e. False, terbinafine is first line treatment for athletes foot
Antifungals
a. fluconazole inhibits cytochrome P450 enzymes
a. True, azole antifungals inhibit p450 enzymes
Antifungals
b. fluconazole inhibits fungal ergosterol synthesis
b. True, azole antifungals inhibits ergosterol synth (cell membrane) by inhibiting 14 demethylase
Antifungals
c. itraconazole is safe to use in patients with advanced liver failure
c. False, itraconazole is hepatotoxic
Antifungals
d. fluconazole is effective against aspergilosis
d. False, use amphotericin B or voriconazole
Antifungals
e. fluconazole is preferred to amphotericin B for invasive candidiasis in the first trimester of pregnancy
e. False, fluconazole is CI in pregnancy as it is teratogenic
Antifungal agents:
a. Itraconazole is used to treat candidiasis
a. True, itraconazole is indicated for candidiasis, dermatophytes, onychomycosis and dimorphic fungal infections
Antifungal agents:
b. IV amphotericin B is used to treat life threatening fungal infections
b. True
Antifungal agents:
c. Fluconazole inhibits fungal DNA synthesis
c. False, azole fungal infections MOA: Inhibits fungal P450 enzymes, inhibits ergosterol synth (cell membrane) by inhibiting 14 demethylase
Antifungal agents:
d. Clotrimazole is CI for use in mucocutaneous fungal infections
d. False, clotrimazole is indicated for the treatment of vaginal and oral candidiasis
Antifungal agents:
e. Nystatin is safe to use in babies
e. True
Antifungal agents:
a. IV amphotericin B is used to treat systemic candidiasis
a. True, amphotericin B is indicated for Systemic Candida, Cryptococcus, Aspergillus, Histoplasma, Blastomyces, Coccidioidis
Antifungal agents:
b. Fluconazole is used to treat dermatophyte infections
b. False, used to treat systemic/oral/ vaginal candidiasis and cryptococcal meningitis
Antifungal agents:
c. Nystatin drops are used to treat intestinal candidiasis in babies
c. True
Antifungal agents:
d. Clotrimazole is CI for use in recurrent vaginal candidiasis
d. False, indicated
Antifungal agents:
e. Terbinafine is used to treat cryptococcal meningitis
e. False, athletes foot. Treat cryptococcal meningitis with amphotericin B or fluconazole
In the treatment of candidiasis:
a. Nystatin drops are used to treat oral candidiasis in babies
a. True
In the treatment of candidiasis:
b. IV amphotericin B is nephrotoxic
b. True, poes toxic
In the treatment of candidiasis:
c. Fluconazole penetrates the BBB
c. True, indicated for cryptococcal meningitis
In the treatment of candidiasis:
d. Terbinafine is effective against aspergillus infections
d. False, aspergillus is treated with voriconazole or amphotericin B or capsofungin