Test 2 Week 1 Flashcards
When is exposure made on a posterior-anterior view chest x ray?
full inspiration
By which route is mycoplasma pneumoniae spread by?
respiratory route
Nearly ALL anaerobes are resistant to which antibiotic class?
aminoglycosides
What’s responsible for the pathogenesis of EBV mononucleosis?
expansion of atypical CD8+ T cells (Downey cells)

What’s the endemic location for histoplasmosis?
Mississippi and Ohio river valleys
Morphology of Moraxella catarrhalis:
gram negative diploccoci
What’s the MOA of zanamivir and oseltamivir?
they are neuraminidase inhibitors with activity against types A and B
What’s the main use of ultrasound in the chest?
detection and characterization of pleural effusions
Morphology of Pneumocystis jiroveci:
•NOT yeast-like, but has unusual single cell forms, uninucleate sporocysts, or cysts containing up to 8 intracyst bodies.

By which route is Chlamydia psittaci spread by?
transmitted by inhalation
What’s the mechanism of action of Amphotericin B?
binds ergosterol in cell wall of fungi and induces oxygen free radicals to form pores in the membrane
Common causes of pneumonia in adults 18-40:
from first aid: -mycoplasma -chlamydia pneumoniae -strep. pneumoniae
morphology of actinomyces:
gram positive bacilli
What are the important characteristics of staph. aureus? (5 things)
-gram positive -group in grape-like clusters -catalase positive -resistant to drying -very heat resistant
What will the monospot test result be in CMV mononucleosis?
negative monospot test
an intestinal flora that causes lobar pneumonia in alcoholics and diabetics when aspirated
Klebsiella pneumonia
What are some side effects of amphotericin B?
- fever/chills
- hypotension
- nephrotoxicity
- arrhythmias
What’s the MOA of amantadine and rimantadine?
block M2 ion channel function, uncoating, and endosomal entry of influenza A
-but they are ineffective against types B and C
A solitary pulmonary nodule is described as a _____.
focal opacity < 3cm
____ is a unique feature of influenza A
antigenic shift
What’s the endemic location for blastomycosis?
states east of mississippi river and central america and around the Great Lakes
Common causes of pneumonia in children (1 month-18 yrs):
from first aid: -respiratory syncytial virus (RSV) -mycoplasma pneumoniae -chlamydia trachomatis -chlamydia pneumoniae - strep. pneumoniae
How does scarlet fever present?
scarlet rash with sandpaper-like texture and a strawberry tongue
How can chronic Q fever present?
most often presents as endocarditis


