IDz Block 2 Flashcards
Coccidio causes ? fevers
Where is Coccidio endemic to and in ? PTs
San Joaquin/Valley Fever
C Immitis/C Posadasii
AZ CA NM West TX
Lab
Filipino Pregnant
What are the S/Sxs of a Coccidio infection
How does the chronic version present
Pulm: 60% ASx
Acute pneumoina- hilar/mediastinal adenopathy
E-multiform/nodosum
Chronic Pneumonia:
TB-like w/ thin wall cavities/nodules
What is the more common for of Coccidio infections
What parts of the body can it infect?
Secondary/disseminated
Fulminant- MC in Filipino AfAm Pregnant ImmComp
Skin
Bones- vertebrae
Meninges
How is Coccidio in Pulm, Disseminated and Meningeal forms Tx
Pulmonary: Sx care
Disseminated, severe: Amphotericin B
Other: Flu/Itraconazole
Meningeal:
Fluconazole x life
IV Amphotericin B
New: PO VT 1598
Histo is the MC cause of ? pulm/cardiac issue
What are the S/Sxs of Histo infection
Fibrosing mediastinitus
Flu-like, hilar/mediastinal lymphadenopathy
Who/how does chronic pulmonary HIsto present
Who/how does disseminated cases present
If PT is being worked up for Addison’s Dz, ? infection needs to be r/o
Male smokers w/ TB like Dz: Bullae Cavitation Granuloma
AIDS/ImmComp: Fever Anemia Weight loss Skin/PO lesions
Histoplasmosis
When Dx Histo, what Dx needs to be r/o
How is Histo Tx
What forms Tx is controversial
TB w/ PPD TST
Acute Pulm: only Tx if hypoxemia/ lasts >1mon
Sev: Amphotericin B
Mild/Mod: Itraconazole
AIDS PTs: Itraconazole x life
Fibrosing Mediastinitis- consider if inc ESR or Complement titers >1:32
What forms of Histo is Tx not indicated
Who does Crypto present more commonly in?
Self-limited/flu like
Acute pericarditis
Rheumatoid manifestation
ASx
M>W
AIDS when CD4 <200 w/ CNS (MC Meningitis)
What Sx is less common w/ Crypto meningitis and what is frequent
How can the pulmonary version present
How does the cutaneous version present
Rare: Fever/stiff neck
Common: N/V
Subacute to ARDS
Papule Pustule Ulcer Nodule
What are two random sites of infection that can indicate Crypto
Why is Crypto hard to Tx
How is it Tx
Prostate
Medullary cavity of bones
Encapsulated
ImmComp-
Pulm w/ Fluconazole
CNS w/ Amphotericin B
Who does Zygomycosis infect
What is Paracoccidomycosis similar to
Ca
Acidotic DM
Malnourished kids
Severely burned PTs
South American blstomycosis
What are the 5 types of non-albicans yeasts and what are they associated w/
Tropicalis- malignancy Krusei- resistant to fluconazole Parapsilosis- TPN Lusitaniae- Amphotericin resistant Glabrata- urinary tract, fluconazole resistant
What are the 5 types of superficial Candidiasis infections
What are the two systemic ones?
Intertrigo Vaginitis Onychomycosis Thrush Esophagitis
Funguria
Candidemia
What PTs get thrush
Esophageal Dz form is seen in who/how?
Neonates
DM on ABX
ImmSupp
PTs incorrect inhaled steroids
Odynophagia Dysphagia ImmComp- often w/ thrush
Most systemic/deep Candidiasis infections are Tx by ?
Diarrhea means an abnormal increase in ? criteria
How long is it present for it to be acute or chronic
IV Amphotericin B
IV Voriconazole
Weight: 250gm/day
Liquid: 80% water
Frequency: 3/day 2/wk
<3wks
>3wks
How does Acute GE present
What are the different causes of food poisoning and incubation times
1-5 days: watery diarrhea, N/V
Ultrashort: 1-2hrs, chemical
Short: 1-6hrs, preformed toxin
Long: 8-16hrs, toxin produce post-consumption
What is the most expensive food borne illness causing microbe
What are two medical conditions that predispose individuals to diarrhea
Salmonella
C Diff- PPIs, ABX
Plesiomonas species- liver Dz/malignancy
Salmonella species are more likely to infect ? PTs
Rotavirus is more likely to infect ?
Malaria Achlorhydria Sickle Cell Hemolytic anemia Dysmotility ImmSupp Malnutrition
Hospitalized
Giardia species are more likely to infect ? PTs
When is viral AGE suspected?
Chronic pancreatitis
Achlorhdria
Cystic fibrosis
Agammaglobulinemia
No bacterial/epidemiology clues
Prominent vomit
Over <3 days
14hrs incubation
Adenovirus
Calcivirus
Fecal/Oral transmission
Serotypes 40-41
Diarrhea Adeno>Rota x 1-2wks
Tx: supportive
Fecal/Oral transmission
Oysters
Lasts 3 days, Tx: supportive
Rotavirus
Unique fact
MC cause diarrhea in infants
MC cause of death from diarrhea in developing country
Fecal/Oral spread
Tx: support
Vaccine avail, not used
Cytomegalovirus
What adverse outcomes can occur w/ this infection
Usually ImmComp/Crohn’s PTs
Can be invasive/colitis
Watery/melena stools
Tx: support, antivirals
Toxic Mega Sepsis Peritonitis Death
Yersinia Entericolitica
Staph A
Raw pork causing Sxs in 1wk
Pseudo-appendicitis/sepsis
polyarticular arthritis
Tx: Cipro, Trimeth/Sulfa
Sudden N/V/D, 30m-8hrs
Tx: supportive
Bacillus Cereus
Clostridium
Multiplies in foods at room temps
Spores heat resistant
Rice/pastas- Fried Rice Syndrome
Tx: Cipro, Trimeth/Sulfa
Gas gangrene, mild GI Sxs
Foods high in protein/starches
Not contagious
Tx: supportive