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NR 508 ADVANCED PHARMACOLOGY EXAM 4 2025 ACTUAL
EXAM 100 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||NEWEST VERSION,
EXAMS OF NURSING
Which antibiotic is recommended for the treatment of uncomplicated cystitis in a non-pregnant
woman?
A. Amoxicillin
B. Nitrofurantoin
C. Azithromycin
D. Linezolid - ANSWER-Answer: B. Nitrofurantoin
Rationale: Nitrofurantoin is recommended for the treatment of uncomplicated cystitis in non-
pregnant women due to its efficacy and safety profile. Amoxicillin, azithromycin, and linezolid
are not first-line treatments for uncomplicated cystitis.
Which of the following antibiotics is recommended as first-line therapy for outpatient treatment
of community-acquired pneumonia (CAP) in a previously healthy adult with no recent antibiotic
use?
A. Amoxicillin
B. Doxycycline
C. Levofloxacin
D. Ceftriaxone - ANSWER-Answer: B. Doxycycline
Rationale: For previously healthy adults with no recent antibiotic use, doxycycline is
recommended as a first-line treatment for outpatient CAP due to its efficacy against common
pathogens and its safety profile. Amoxicillin can be used but is less preferred due to increasing
resistance. Levofloxacin is reserved for cases with comorbidities or recent antibiotic use to avoid
resistance. Ceftriaxone is typically used in an inpatient setting.
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Which of the following is the preferred antibiotic for empiric therapy of severe CAP requiring
ICU admission?
A. Vancomycin
B. Piperacillin-tazobactam
C. Ceftriaxone and azithromycin
D. Amoxicillin and doxycycline - ANSWER-Answer: C. Ceftriaxone and azithromycin
Rationale: For severe CAP requiring ICU admission, ceftriaxone combined with azithromycin is
preferred to cover both typical and atypical pathogens. Vancomycin is added if MRSA is
suspected, and piperacillin-tazobactam is used for suspected Pseudomonas aeruginosa
infection. Amoxicillin and doxycycline are not sufficient for severe cases.
Which of the following factors would most likely necessitate the addition of vancomycin or
linezolid to the treatment regimen for CAP?
A. Recent travel history
B. High fever and leukocytosis
C. History of MRSA infection
D. Positive urine antigen for Legionella - ANSWER-Answer: C. History of MRSA infection
Rationale: A history of MRSA infection is a strong indication for adding vancomycin or linezolid
to the treatment regimen to cover MRSA. Recent travel history and positive urine antigen for
Legionella suggest different pathogens, and high fever and leukocytosis are non-specific
indicators of infection
For a hospitalized patient with CAP who has a beta-lactam allergy, which of the following
regimens is recommended?
A. Ceftriaxone and azithromycin
B. Levofloxacin
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C. Amoxicillin-clavulanate and doxycycline
D. Meropenem and vancomycin - ANSWER-Answer: B. Levofloxacin
Rationale: In patients with a beta-lactam allergy, levofloxacin alone is recommended due to its
broad spectrum of activity against typical and atypical pathogens in CAP. Ceftriaxone and
amoxicillin-clavulanate are beta-lactams and should be avoided. Meropenem and vancomycin
are not first-line treatments for standard CAP cases without specific indications.
Which pathogen should be considered in the treatment of CAP in a patient with a history of
chronic obstructive pulmonary disease (COPD)?
A. Streptococcus pneumoniae
B. Mycoplasma pneumoniae
C. Pseudomonas aeruginosa
D. Chlamydia pneumoniae - ANSWER-Answer: C. Pseudomonas aeruginosa
Rationale: In patients with COPD, Pseudomonas aeruginosa should be considered due to its
association with chronic lung disease. Streptococcus pneumoniae, Mycoplasma pneumoniae,
and Chlamydia pneumoniae are common CAP pathogens but are not specifically associated with
COPD.
Which macrolide antibiotic is commonly used in the outpatient treatment of CAP due to its
activity against atypical pathogens?
A. Erythromycin
B. Clarithromycin
C. Azithromycin
D. Fidaxomicin - ANSWER-Answer: C. Azithromycin
Rationale: Azithromycin is commonly used for outpatient treatment of CAP because of its
effectiveness against atypical pathogens such as Mycoplasma pneumoniae and Chlamydia
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pneumoniae. Erythromycin and clarithromycin are also macrolides but are used less frequently
due to side effects and drug interactions. Fidaxomicin is used for Clostridioides difficile infection,
not CAP.
Which of the following diagnostic tests is most helpful in guiding antibiotic therapy for CAP?
A. Blood culture
B. Sputum Gram stain and culture
C. Chest X-ray
D. Urine antigen test for Legionella - ANSWER-Answer: B. Sputum Gram stain and culture
Rationale: Sputum Gram stain and culture are most helpful
Daptomycin is not recommended for treating pneumonia because:
A. It causes severe nephrotoxicity.
B. It is inactivated by lung surfactant.
C. It has poor penetration into the lungs.
D. It induces rapid resistance. - ANSWER-Answer: B. It is inactivated by lung surfactant.
Rationale: Daptomycin is inactivated by lung surfactant, making it ineffective for treating
pneumonia. It is primarily used for skin infections, bacteremia, and endocarditis caused by
gram-positive bacteria.
Vancomycin is primarily eliminated through which organ system?
A. Hepatic
B. Renal
C. Pulmonary
D. Gastrointestinal - ANSWER-Answer: B. Renal
NR 508 ADVANCED PHARMACOLOGY EXAM 4 2025 ACTUAL
EXAM 100 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||NEWEST VERSION,
EXAMS OF NURSING
Which antibiotic is recommended for the treatment of uncomplicated cystitis in a non-pregnant
woman?
A. Amoxicillin
B. Nitrofurantoin
C. Azithromycin
D. Linezolid - ANSWER-Answer: B. Nitrofurantoin
Rationale: Nitrofurantoin is recommended for the treatment of uncomplicated cystitis in non-
pregnant women due to its efficacy and safety profile. Amoxicillin, azithromycin, and linezolid
are not first-line treatments for uncomplicated cystitis.
Which of the following antibiotics is recommended as first-line therapy for outpatient treatment
of community-acquired pneumonia (CAP) in a previously healthy adult with no recent antibiotic
use?
A. Amoxicillin
B. Doxycycline
C. Levofloxacin
D. Ceftriaxone - ANSWER-Answer: B. Doxycycline
Rationale: For previously healthy adults with no recent antibiotic use, doxycycline is
recommended as a first-line treatment for outpatient CAP due to its efficacy against common
pathogens and its safety profile. Amoxicillin can be used but is less preferred due to increasing
resistance. Levofloxacin is reserved for cases with comorbidities or recent antibiotic use to avoid
resistance. Ceftriaxone is typically used in an inpatient setting.
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Which of the following is the preferred antibiotic for empiric therapy of severe CAP requiring
ICU admission?
A. Vancomycin
B. Piperacillin-tazobactam
C. Ceftriaxone and azithromycin
D. Amoxicillin and doxycycline - ANSWER-Answer: C. Ceftriaxone and azithromycin
Rationale: For severe CAP requiring ICU admission, ceftriaxone combined with azithromycin is
preferred to cover both typical and atypical pathogens. Vancomycin is added if MRSA is
suspected, and piperacillin-tazobactam is used for suspected Pseudomonas aeruginosa
infection. Amoxicillin and doxycycline are not sufficient for severe cases.
Which of the following factors would most likely necessitate the addition of vancomycin or
linezolid to the treatment regimen for CAP?
A. Recent travel history
B. High fever and leukocytosis
C. History of MRSA infection
D. Positive urine antigen for Legionella - ANSWER-Answer: C. History of MRSA infection
Rationale: A history of MRSA infection is a strong indication for adding vancomycin or linezolid
to the treatment regimen to cover MRSA. Recent travel history and positive urine antigen for
Legionella suggest different pathogens, and high fever and leukocytosis are non-specific
indicators of infection
For a hospitalized patient with CAP who has a beta-lactam allergy, which of the following
regimens is recommended?
A. Ceftriaxone and azithromycin
B. Levofloxacin
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C. Amoxicillin-clavulanate and doxycycline
D. Meropenem and vancomycin - ANSWER-Answer: B. Levofloxacin
Rationale: In patients with a beta-lactam allergy, levofloxacin alone is recommended due to its
broad spectrum of activity against typical and atypical pathogens in CAP. Ceftriaxone and
amoxicillin-clavulanate are beta-lactams and should be avoided. Meropenem and vancomycin
are not first-line treatments for standard CAP cases without specific indications.
Which pathogen should be considered in the treatment of CAP in a patient with a history of
chronic obstructive pulmonary disease (COPD)?
A. Streptococcus pneumoniae
B. Mycoplasma pneumoniae
C. Pseudomonas aeruginosa
D. Chlamydia pneumoniae - ANSWER-Answer: C. Pseudomonas aeruginosa
Rationale: In patients with COPD, Pseudomonas aeruginosa should be considered due to its
association with chronic lung disease. Streptococcus pneumoniae, Mycoplasma pneumoniae,
and Chlamydia pneumoniae are common CAP pathogens but are not specifically associated with
COPD.
Which macrolide antibiotic is commonly used in the outpatient treatment of CAP due to its
activity against atypical pathogens?
A. Erythromycin
B. Clarithromycin
C. Azithromycin
D. Fidaxomicin - ANSWER-Answer: C. Azithromycin
Rationale: Azithromycin is commonly used for outpatient treatment of CAP because of its
effectiveness against atypical pathogens such as Mycoplasma pneumoniae and Chlamydia
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pneumoniae. Erythromycin and clarithromycin are also macrolides but are used less frequently
due to side effects and drug interactions. Fidaxomicin is used for Clostridioides difficile infection,
not CAP.
Which of the following diagnostic tests is most helpful in guiding antibiotic therapy for CAP?
A. Blood culture
B. Sputum Gram stain and culture
C. Chest X-ray
D. Urine antigen test for Legionella - ANSWER-Answer: B. Sputum Gram stain and culture
Rationale: Sputum Gram stain and culture are most helpful
Daptomycin is not recommended for treating pneumonia because:
A. It causes severe nephrotoxicity.
B. It is inactivated by lung surfactant.
C. It has poor penetration into the lungs.
D. It induces rapid resistance. - ANSWER-Answer: B. It is inactivated by lung surfactant.
Rationale: Daptomycin is inactivated by lung surfactant, making it ineffective for treating
pneumonia. It is primarily used for skin infections, bacteremia, and endocarditis caused by
gram-positive bacteria.
Vancomycin is primarily eliminated through which organ system?
A. Hepatic
B. Renal
C. Pulmonary
D. Gastrointestinal - ANSWER-Answer: B. Renal
