Infectious Disease Flashcards
(35 cards)
At what CD4 count do you get PJP?
< 200
What infection do you get at CD4 < 50
MAC
PCNSL
Bacillary angiomatosis
What infection do you get at CD4 < 100?
PML - JC virus
CNS toxoplasmosis
After how long can HIV ab be detected?
3 weeks some
3 mo definitely
What screening test do you do for HIV ?
ELISA
p24 antigen / HIV Ab test
How to confirm HIV?
Western Blot
When to prophylaxis against PJP?
CD < 200 or
Oral candida
When to prophylaxis against toxoplasmosis ?
IgG +ve toxoplasmosis PLUS CD < 100
When to prophylaxis against TB ?
PPD > 5mm
Contact with person with active TB
When to prophylaxis against MAC ?
CD4 < 50
CURB 65 RULE?
Confusion 1 Urea > 7 or BUN > 20 RR > 30 BP < 90 65 > 65 yo
Mortality risk based on CURB 65?
Points:
0 - 1 –> 5%
2 - 3 –> 5 - 15%
> 3 –> 15 - 30 %
Treatment of CAP pneumonia in :
- Outpatient
- No abx in last 3 mo
Ceftriaxone OR Azythromycin OR Doxycycline
Treatment of CAP pneumonia in :
- Outpatient
- Comorbidities/recent abx use
Ceftraxiaone +/- azythro
OR
fluoroquinolone (xacin)
Treatment of CAP pneumonia in the ward
Ceftraxiaone +/- azythro
OR
fluoroquinolone (xacin)
Treatment of CAP pneumonia in ICU?
Ceftriaxone
PLUS
Azythro or fluoroquinolone
Aspiration pneumonia treatment?
Clindamycin
Treatment of HAP with no MRSA/no high risk?
Pip-Taz OR Cefepime OR Levofloxacin OR Meropenem
Treatment of HAP with MRSA but no high risk?
Pip-Taz OR Cefepime OR Levofloxacin OR Meropenem
PLUS
VANC/Linezolid
Indications for pneumovax (plysaccharide)?
> 65 yo
> 24 mo with immunodeficiency, congenital/anatomical abnormality
Indications for prevnar-13 ( conjugated )?
< 5 yo
Age 5-17 yo at high risk of pneumonical disease
Diarrhoea after having egg salad?
S. Aureus
Diarrhoea after camping?
Giardia
Diarrhoea after a BBQ that is bloody?
EHEC
