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27 Cards in this Set
- Front
- Back
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Forms of chlamydiae |
Elementary body (small, dense) is “Enfectious” and Enters cell via Endocytosis; transforms into reticulate body. |
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What diseases do Chlamydia trachomatis cause? |
Reactive arthritis (Reiter syndrome), follicular conjunctivitis, nongonococcal urethritis, and PID. |
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What do Chlamydophila pneumoniae and C. psittaci cause? |
Atypical pneumonia |
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Treatment of Chlamydiae infection? |
Azithromycin (favored because one-time treatment) or doxycycline. |
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What lab tests are used to detect Chlamydiae? |
Giemsa or fluorescent antibody–stained smear - cytoplasmic inclusions. |
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Mycoplasmal pneumonia symptoms |
Insidious onset, headache, nonproductive cough, patchy or diffuse interstitial infiltration. X-ray looks worse than patient. |
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M. pneumoniae morphological features |
Pleomorphic, no cell wall, not seen on Gram stain. |
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On what medium M.pneumoniae grows? |
Eaton agar |
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Symptoms of Rocky Mountain spotted fever |
Classic triad: headache, fever, rash (vasculitis), that typically starts at wrists and ankles and |
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Treatment of Rocky Mountain spotted fever |
Doxycycline |
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Where Rocky Mountain spotted fever is more common? |
South Atlantic states, especially North Carolina. |
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Symptoms of typhus |
Fever, headache and rash that starts centrally and spreads out, sparing palms and soles. |
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How to treat typhus? |
Doxycycline |
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How to diagnose ehrlichiosis? |
Monocytes with morulae (berry-like inclusions) in cytoplasm. |
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How to diagnose anaplasmosis? |
Granulocytes with morulae in cytoplasm. |
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How Q fever is transmitted? |
Spores inhaled as aerosols from cattle/sheep amniotic fluid. |
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Symptoms of Q fever |
Pneumonia, endocarditis, no rash. |
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How C. pneumoniae and C. psittaci are transmitted? |
By aerosol |
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Why b-lactams are not effective against Chlamydiae? |
The chlamydial cell wall lacks classic |
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What laboratory finding is characteristic for M. pneumoniae? |
High titer of cold agglutinins (IgM), which can agglutinate or lyse RBCs. |
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How to treat pneumonia, caused by M.pneumoniae? |
Macrolide, doxycycline, or fluoroquinolone |
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What people are more likely gonna get M. pneumoniae? |
Military recruits and prisoners. |
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What diseases are caused by A, B and C serotypes of C. trachomatis? |
Chronic infection, blindness due to |
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What diseases are caused by D-K serotypes of C. trachomatis? |
Urethritis/PID, ectopic pregnancy, neonatal |
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What diseases are caused by L1,L2 and L3 serotypes of C. trachomatis? |
Lymphogranuloma venereum |
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Symptoms of lymphogranuloma venereum |
Small, painless ulcers on genitals, followed by swollen painful inguinal lymph nodes that ulcerate (buboes). |
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How to treat lymphogranuloma venereum? |
Doxycycline |
