LTAI Questions (621, 622, 623) Questions with CORRECT Answers (Grade A+)
Question 1:
Which bacteria is the primary pathogen for college age community acquired pneumonia?
1. Mycoplasma
2. Proteus Mirabilis
3. Pseudomonas Aeruginosa
4. streptococcus pneumoniae
Answer:
mycoplasma
***strep pneumoniae is
overall most common
Question 2:
Streptococcus pyogenes, when left untreated can progress to which two complications?
1. Atrial fibrillation and myocarditis
2. Pneumonia and pleural effusion
3. Rheumatic fever and glomerulonephritis
4. Meningitis and cerebral edema
Answer:
Rheumatic fever and glomerulonephritis
Question 3:
A 68-year-old male presents with septic shock and a suspected healthcare-associated pneumonia.
Which of the following initial antibiotic regimens is most appropriate?
A. Azithromycin and ceftriaxone
B. Piperacillin/tazobactam and vancomycin
C. Ciprofloxacin alone
D. Metronidazole and ceftriaxone
Answer:
B. Piperacillin/tazobactam
, and vancomycin (MRSA and pseudomonas coverage)
Question 4:
A patient is being treated with vancomycin and piperacillin-tazobactam for healthcare associated
sepsis. After 72 hours, cultures grow Escherichia coli sensitive to ceftriaxone. The patient is
hemodynamically stable and improving. What is the best next step?
A. Continue current antibiotics for 10 days
B. Narrow antibiotics to ceftriaxone
C. Discontinue antibiotics immediately
D. Add metronidazole for anaerobic coverage
Answer:
B. Narrow antibiotics to
ceftriaxone
Question 5:
A 72-year-old male with a history of diabetes and multiple prior hospitalizations presents with
fever, hypotension, and a painful erythematous lesion on his thigh. Wound culture later reveals
gram-positive cocci in clusters. Which of the following is the most likely causative organism and
why?
A. Methicillin-resistant Staphylococcus aureus (MRSA)
B. Vancomycin-resistant Enterococcus (VRE)
C. Pseudomonas aeruginosa
D. Escherichia coli
Answer:
A. Methicillin-resistant
Staphylococcus aureus (MRSA)
Question 6:
A 74-year-old man with a recent course of fluoroquinolones is admitted with profuse watery
diarrhea, abdominal pain, and fever. On exam, he is hypotensive (BP 84/50 mmHg), tachycardic,
and has a distended, tender abdomen. Labs show leukocytosis of 32,000/µL and acute kidney
Question 1:
Which bacteria is the primary pathogen for college age community acquired pneumonia?
1. Mycoplasma
2. Proteus Mirabilis
3. Pseudomonas Aeruginosa
4. streptococcus pneumoniae
Answer:
mycoplasma
***strep pneumoniae is
overall most common
Question 2:
Streptococcus pyogenes, when left untreated can progress to which two complications?
1. Atrial fibrillation and myocarditis
2. Pneumonia and pleural effusion
3. Rheumatic fever and glomerulonephritis
4. Meningitis and cerebral edema
Answer:
Rheumatic fever and glomerulonephritis
Question 3:
A 68-year-old male presents with septic shock and a suspected healthcare-associated pneumonia.
Which of the following initial antibiotic regimens is most appropriate?
A. Azithromycin and ceftriaxone
B. Piperacillin/tazobactam and vancomycin
C. Ciprofloxacin alone
D. Metronidazole and ceftriaxone
Answer:
B. Piperacillin/tazobactam
, and vancomycin (MRSA and pseudomonas coverage)
Question 4:
A patient is being treated with vancomycin and piperacillin-tazobactam for healthcare associated
sepsis. After 72 hours, cultures grow Escherichia coli sensitive to ceftriaxone. The patient is
hemodynamically stable and improving. What is the best next step?
A. Continue current antibiotics for 10 days
B. Narrow antibiotics to ceftriaxone
C. Discontinue antibiotics immediately
D. Add metronidazole for anaerobic coverage
Answer:
B. Narrow antibiotics to
ceftriaxone
Question 5:
A 72-year-old male with a history of diabetes and multiple prior hospitalizations presents with
fever, hypotension, and a painful erythematous lesion on his thigh. Wound culture later reveals
gram-positive cocci in clusters. Which of the following is the most likely causative organism and
why?
A. Methicillin-resistant Staphylococcus aureus (MRSA)
B. Vancomycin-resistant Enterococcus (VRE)
C. Pseudomonas aeruginosa
D. Escherichia coli
Answer:
A. Methicillin-resistant
Staphylococcus aureus (MRSA)
Question 6:
A 74-year-old man with a recent course of fluoroquinolones is admitted with profuse watery
diarrhea, abdominal pain, and fever. On exam, he is hypotensive (BP 84/50 mmHg), tachycardic,
and has a distended, tender abdomen. Labs show leukocytosis of 32,000/µL and acute kidney
