Infectious Disease Flashcards
(50 cards)
Three most common causes of PUO
Infection
Cancer
Autoimmune disease
Signs and symptoms of streptococcal pharyngitis
Fever, tender anterior cervical lymphadenopathy, tonsillar exudate, LACK of cough
Nonsuppurative complication of streptococcal infection that is not altered by treatment of primary infection
Post infectious glomerulonephritis
Most common predisposing factor for acute sinusitis
Viral URI
Asplenic patients are particularly susceptible to…
Encapsulated organisms:– pneumococcus, meningococcus, haemophilus influenzae, klebsiella
The number of bacteria needed on a clean-catch specimen to diagnose a UTI
10^5 bacteria/ml
Which healthy population in susceptible to UTIs?
Pregnant women –> Tx this group aggressively because of high risk of complications
A patient from California or Arizona presents with fever, malaise, cough, and night sweats.
Dx? Tx?
Coccidiodomycosis
Tx: amphotericin B
Non painful chancre
Primary syphilis
A ‘blueberry muffin’ rash is characteristic of what congenital infection?
Rubella
Meningitis in neonate
Causes?
Tx?
GBS, E.coli, Listeria
Tx: gentamicin & ampicillin
Meningitis in infants
Causes?
Tx?
Pneumococcus, meningococcus, H.influenzae
Tx: cefotaxime & vancomycin
What should always be done prior to LP?
Check for raised ICP
Look for papilloedema
CSF: low glucose, PMN predominance
Bacterial meningitis
CSF: normal glucose, lymphocytic predominance
Viral (aseptic) meningitis
CSF: numerous RBCs in serial CSF samples
Subarachnoid haemorrhage (SAH)
CSF: raised gamma globulins
Multiple sclerosis
Initially presents with a pruritic papule with regional lymphadenopathy; evolves into a black eschar after 7-10 days
Tx?
Cutaneous anthrax
Tx: penicillin G or ciprofloxacin
Findings in tertiary syphilis
Tabes dorsalis, general paresis, gummas, Argyll Robertson pupil, aortitis, aortic root aneurysms
Characteristics of secondary Lyme disease
Arthralgias, migratory polyarthropathies, Bell’s palsy, myocarditis
Cold agglutinins
Mycoplasma
A 24 year old man presents with soft white plaques on his tongue and the back of his throat.
Dx? Work up? Tx?
Candidal thrush –> HIV test
Tx: nystatin oral suspension
At what CD4 count should Pneumocystic jiroveci pneumonia prophylaxis be initiated in an HIV +ve?
Mycobacterium avium complex (MAC) prophylaxis?
<200 for P. Jiroveci (with TMP-SMX)
<50-100 for MAC
MAC prophylaxis: clarithromycin/erythromycin
Rick factors for pyelonephritis
Pregnancy Vesicoureteric reflux Anatomical anomalies Indwelling catheters Kidney stones
