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Infectious Disease EXAM 4 - OIs
Infectious Disease EXAM 4 - OIs
19
Pharmacology
Graduate
02/15/2011

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Term
pneumocystis pneumonia: most common life-threatening OI
candidiasis
tuberculosis
toxoplasmosis encephalitis: 2nd most common AIDS related CNS infection
crytococcal meningitis
cytomegalovirus retinitis
mycobacterium avium complex (MAC)
Definition
common opportunistic infections in HIV patients
Term
CD4 < 200 initiate prophylaxis

TMP/SMX (DOC): 1DS or 1SS daily or x3/w

alternative treatments:
atovaquone, dapsone, aerosolized pentamidine
Definition
primary prophylaxis of pneumocystsis pneumonia and when to initiate prophylaxis
Term
treat for 21 days

moderate to severe:
TMP/SMX IV
OR
Pentamidine IV
OR
Clindamycin IV PLUS Primaquine PO

mild to moderate:
TMP/SMX PO
OR
Atotaquone PO
OR
Dapsone PO PLUS TMP PO
OR
Clindamycin PO PLUS Primaquone PO

if CD4 count < 200 at time of PCP diagnosis secondary prophylaxis can be discontinued when CD4 count > 200 x 3 months
if CD4 count > 200 at time of PCP diagnosis, continue prophylaxis lifelong
Definition
Treatment for Pneumocystis Pneumonia
Term
rash
neutropenia
hepatitis
neurologic toxicity
hyperkalemia
Definition
ADRs of TMP/SMX
Term
nephrotoxicity
hypoglycemia
leukopenia/anemia
GI intolerance
hepatitis
pancreatitis
Definition
ADRs of pentamadine
Term
Rash
fever
Definition
ADRs of Dapsone
Term
HA
N/V/D
rash
increased transaminases
Definition
ADRs of atovaquone
Term
CD4 < 100 initiate prophylaxis

TMP/SMX 1DS or 1SS daily
OR
Dapsone PLUS Pyrimethamine PLUS Leucovorin (folinic acid)
Definition
primary prophylaxis of toxoplasmosis encephalitis and when to initiate prophylaxis
Term
Sulfadiazine PLUS Pyrimethamine PLUS Leucovorin (folinic acid)

Alternative Treatment:
Clindamycin PLUS Pyrimethamine PLUS Leucovorin

Adjunctive Medications:
steroids, anticonvulsants

lifelong maintenance therapy
Definition
Treatment of toxoplasmosis
Term
rash
fever
leukopenia
hepatitis
N/V/D
crystalluria
Definition
ADRs of sulfadiazine
Term
rash
nausea
myelosuppression due to depleted folic acid stores *prevented with folinic acid (leucovorin)
Definition
ADRs of Pyrimethamine
Term
fever
rash
N/V/D
pseudomembranous colitis
hepatotoxicity
Definition
ADRs of Clindamycin
Term
sight threatening:
intraocular ganciclovir implants PLUS valganciclovir PO

peripheral lesions:
valganciclovir PO BID x 14-21 days then qd

maintenance therapy recommended for life (retinitis)
Definition
treatment of CMV retinitis (no primary prophylaxis)
Term
RENAL DOSE MODIFICATION
give PO forms with food
NEUTROPENIA
thrombocytopenia
nephrotoxicity
N/D
Definition
ADRs of ganciclovir/valganciclovir
Term
renal dose modification
NEPHROTOXICITY
serum electrolyte decreases
anemia
Definition
ADRs of foscarnet
Term
weekly dosing
NEPHROTOXICITY
neutropenia
Definition
ADRs of cidofovir
Term
CD4 < 50 initiate prophylaxis

Clarithromycin
OR
Azithromycin
OR
Rifabutin
Definition
primary prophylaxis of MAC and when to initiate prophylaxis
Term
Clarithromycin OR Azithromycin
PLUS
Ethambutol
+/-
Rifabutin

high treatment failure rates
Definition
treatment of MAC
Term
red body fluids
rash
GI intolerance
dose related uveitis: red, painful eye, blurred vision
drug interactions
Definition
ADRs of rifabutin
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