HAI & antibiotics Flashcards
(100 cards)
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What percentage of hospital patients experience hospital-acquired infections (HAI) according to the CDC?
- A) 1 in 15
- B) 1 in 20
- C) 1 in 31
- D) 1 in 50
Answer: C) 1 in 31
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Which of the following is NOT a common source of HAI?
- A) Central line-associated sepsis
- B) Ventilator-associated pneumonia
- C) Appendectomy
- D) Clostridium difficile infections
Answer: C) Appendectomy
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Which of the following are common risk factors for hospital-acquired infections? select 2
- A) Older age
- B) Mechanical ventilatory support
- C) Short hospital stay
- D) Strong immune system
Answer: A) Older age, B) Mechanical ventilatory support
Answer: A) Older age, B) Mechanical ventilatory support
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Which of the following are types of surgical site infections (SSI)?
- A) Superficial incisional
- B) Organ or space
- C) Deep incisional
- D) Systemic incisional
Answer: A) Superficial incisional, B) Organ or space, C) Deep incisional
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What is the most common surgical site infection (SSI)?
- A) Superficial incisional
- B) Deep incisional
- C) Organ or space
- D) All of the above
Answer: A) Superficial incisional
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Which pathogen is most commonly associated with hospital-acquired infections?
- A) Staphylococcus
- B) Streptococcus
- C) Pseudomonas
- D) E. coli
Answer: A) Staphylococcus
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Which of the following is a risk factor for surgical site infection (SSI)?
- A) Diabetes
- B) Short hospital stay
- C) Clean surgical wound
- D) Adequate glycemic control
Answer: A) Diabetes
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Which type of surgical wound involves spillage of contents from an internal organ?
- A) Clean
- B) Clean-contaminated
- C) Contaminated
- D) Dirty
Answer: C) Contaminated
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What percentage of surgical site infections (SSIs) are potentially preventable?
- A) 10%
- B) 25%
- C) 50%
- D) 75%
Answer: C) 50%
Answer: C) 50%
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Which of the following is NOT a recommendation for antibiotic prophylaxis during surgery?
- A) Administer antibiotics within 1 hour of incision
- B) Use the newest antibiotics available
- C) Ensure adequate bactericidal concentration in tissues
- D) Re-dose antibiotics for prolonged procedures
Answer: B) Use the newest antibiotics available
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What is the main goal of preoperative prophylaxis?
- A) Prevent surgical errors
- B) Ensure complete sterilization of the operating room
- C) Achieve adequate bactericidal concentration in serum and tissues during surgery
- D) Reduce patient anxiety
Answer: C) Achieve adequate bactericidal concentration in serum and tissues during surgery
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Which of the following antibiotics is typically administered before surgery to prevent infection?
- A) Penicillin
- B) Cefazolin
- C) Metronidazole
- D) Ciprofloxacin
Answer: B) Cefazolin
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What is the common adverse reaction to vancomycin administration?
- A) Rash
- B) Nephrotoxicity
- C) Diarrhea
- D) All of the above
Answer: D) All of the above
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Which of the following pathogens is most likely to cause bloodstream infections and endocarditis in hospital settings?
- A) Pseudomonas
- B) E. coli
- C) MRSA
- D) Streptococcus
Answer: C) MRSA
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Which antibiotic class inhibits bacterial cell wall synthesis?
- A) Beta-lactams
- B) Aminoglycosides
- C) Fluoroquinolones
- D) Metronidazole
Answer: A) Beta-lactams
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Which generation of cephalosporins has the best penetration of the blood-brain barrier?
- A) 1st
- B) 2nd
- C) 3rd
- D) 4th
Answer: D) 4th
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What is the main adverse reaction associated with fluoroquinolones?
- A) Cartilage damage/tendon rupture
- B) Nephrotoxicity
- C) Ototoxicity
- D) Hypersensitivity
Answer: A) Cartilage damage/tendon rupture
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What is the mechanism of action for metronidazole?
- A) Inhibits DNA protein synthesis
- B) Inhibits cell wall synthesis
- C) Forms toxic byproducts that damage DNA
- D) Inhibits ribosomal protein synthesis
Answer: C) Forms toxic byproducts that damage DNA
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Which of the following antibiotics should be avoided in patients with a known allergy to penicillin?
- A) Cefazolin
- B) Metronidazole
- C) Amoxicillin
- D) Ciprofloxacin
Answer: C) Amoxicillin
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Which of the following describes deep incisional surgical site infections?
- A) Occurs only on the surface of the skin
- B) Occurs beneath the incision area in muscles and surrounding tissues
- C) Occurs only in organs or spaces between organs
- D) Occurs as a result of superficial wounds
Answer: B) Occurs beneath the incision area in muscles and surrounding tissues
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Which organism is commonly found in ventilator-associated pneumonia? mulitple choice
- A) Staphylococcus aureus
- B) Pseudomonas aeruginosa
- C) Streptococcus pneumoniae
- D) Clostridium difficile
Answer: B) Pseudomonas aeruginosa (gram negative)
- A) Staphylococcus aureus (gram positive).
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Which of the following is a major risk factor for urinary catheter-associated UTIs?
- A) Short hospital stay
- B) Older age
- C) Use of central venous lines
- D) Immunosuppression
Answer: B) Older age
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What is the main cause of Clostridium difficile infections in hospital settings?
- A) Improper hand hygiene
- B) Contaminated water
- C) Overuse of antibiotics
- D) Blood transfusions
*
*Answer:** C) Overuse of antibiotics
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Which of the following is the appropriate timing for administering surgical prophylactic antibiotics?
- A) After surgery begins
- B) Within 1 hour of incision
- C) After surgery has ended
- D) At the time of hospital admission
Answer: B) Within 1 hour of incision