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68WM6 Ph 2 Test 3-AF
68WM6 Ph 2 Test 3-Anti-fungal
Question | Answer |
---|---|
What is the purpose of antifungal use | 1)treatment of fungal infections 2)treats infection of mucous membranes with topical or vaginal preparation 3)treat deep-seated/system infections with oral or parenteral therapy 4)new forms of amphotericin use liquid encapsulation to decrease toxicity. |
What is the actions of antifungal | To kill (fungicidal) or stop growth of (fungistatic) susceptible fungi by affecting the permeability of the fungal cell membrane or protein synthesis within the fungal cell itself |
Name the 2 categories of Antifungals | 1)Systemic 2)Topical/Local |
Name 3 types of Systemic Antifungals | 1)amphtericin B cholesteryl sulfate (Amphotec):fungistatic or fungicidal, depending on the dosage. 2)fluconazole (Diflucan) 3)ketoconazole (Nizoral) |
Name 3 types of Topical/Local Antifungals | 1)butenafine (Lotrimin Ultra) 2)clotrimazole (Lotrimin) 3)ketoconazole (Nizoral) 4)miconazole (Litrimin AF, Maximum Strength Desenex/Monistat-Derm) 5)nystatin (Mycostatin) 6)terbinafine (Lamisil AT) 7)tolnaftate (Tinactin) |
Antifungal Contraindications | previous hypersensitivity |
Antifungal Precautions | 1)cautious use in pt with depressed bone marrow reserve. 2)Amphotericin B commonly causes renal impairment. 3)Fluconazole requires dosage adjustment for the renal impairment pt. 4)Adverse reactions to fluconazole may be more server in HIV-positive pt |
Antifungal Side Effects/Adverse Reactions | 1)Systemic a)CNS:headache b)GI:N/V/D c)F and E:hypokalemia 2)Topical/Local: burning, itching, local hypersensitivity reactions. |
Antifungal Assessment | 1)increased skin irritation may indicate need to discontinue medication 2)Monitor VS q 15-50min during 1st infusion, not changes in BP and pulse. 3)Decreased urine output/changes in specific gravity/>2lb/wk, stop use to prevent renal tubule damage. |
Renal toxicity | increased BUN (>40mg/dl), creatine (>3mg/dl). Drug may be disacontinued or dosage reduced. |
Hepatotoxicity | increased AST, ALT, alk phos, bilirubin |
Opportunistic disease | Some fungi are part of normal tissue(e.g.,Candia albicans). This is when the pt becomes infected with these organisms. |