Antibacterial Treatment of Pneumonia

Most common cause of community acquired pneumonia in the U.S.:
1. Haemophilus influenzae
2. Streptococcus pneumoniae (pneumococci)
3. Legionella
4. Mycoplasma pneumoniae
Reasonable first-choice to treat pneumonia in a hospitalized patient and before results of culture, antibiotic sensitivity, and clinical response are known:
1. vancomycin (Vancocin)
2. cefotaxime (Claforan)
3. high-dose i.v. penicillin (12 million units/day for an adult)
4. B & C
Pneumonia treatment in an otherwise healthy ambulatory patient:
1. levofloxacin (Levaquin)
2. erythromycin
3. both
4. neither
Most likely to be effective pneumonia therapy in an otherwise healthy ambulatory patient whose pneumonia is penicillin-resistant:
1. azithromycin (Zythromax)
2. doxycycline (Vibramycin, Doryx)
3. levofloxacin (Levaquin)
4. all of the above
Organism most likely responsible for hospital-acquired bacterial pneumonia:
1. Streptococcus pneumoniae
2. Klebsiella
3. both
4. neither
Effective in treating hospital-acquired bacterial pneumonia caused by Enterobacter:
1. cefotaxime (Claforan)
2. ceftizoxime (Cefizox)
3. ceftriaxone (Rocephin)
4. all of the above
In the intensive care setting (ICU), a patient with a nosocomial pneumonia caused by a highly-resistant gram-negative bacteria (Pseudomonas aeruginosa) might be reasonably treated with:
1. cefotaxime (Claforan)
2. ceftizoxime (Cefizox)
3. imipenem plus an aminoglycoside
4. all of the above
"Atypical" pathogen that can cause community-acquired pneumonia:
1. Haemophilus influenzae
2. Staphylococcus aureus
3. Klebsiella pneumoniae
4. Chlamydia pneumoniae