Bundle Approach to Prevention — MCQs

What is the best way to control the MRSA infection in the ward?

Which of the following is the true statement regarding measures to prevent typhoid transmission in the community?

What is the primary purpose of hand hygiene in healthcare settings?

A study of nosocomial infections involving urinary catheters is performed. The study shows that the longer an indwelling urinary catheter remains, the higher the rate of symptomatic urinary tract infections (UTIs). Most of these infections are bacterial. Which of the following properties of these bacteria increase the risk for nosocomial UTIs?

A 65-year-old male underwent emergency laparotomy for perforated duodenal ulcer 5 days ago. He now develops fever (38.5°C), productive cough, and increased oxygen requirement. Chest X-ray shows a new right lower lobe infiltrate. Gram stain of endotracheal aspirate shows Gram-negative bacilli, and culture grows lactose-fermenting colonies that are oxidase-negative and produce a metallic sheen on EMB agar. The isolate is resistant to ampicillin and third-generation cephalosporins but sensitive to cefoxitin (a cephamycin). Resistance is inhibited by clavulanic acid in disk synergy testing. The isolate is also resistant to fluoroquinolones, but sensitive to carbapenems and colistin. What is the most likely mechanism of antibiotic resistance in this organism?

Hospital acquired infection of a surgical wound is mostly caused by which of the following?

Nosocomial infections are typically defined as infections occurring after how many hours of hospital admission?

What is the most common cause of prosthetic heart valve infection?

Which of the following statements is NOT true regarding nosocomial infections?

Which virus has the highest chance of transmission after a needle stick injury?