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Common Nosocomial Pathogens and Infections Quiz

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Questions and Answers

What is the main difference between a Port-A-Cath and a PICC line?

Port-A-Cath has a higher risk of catheter-related bloodstream infections compared to PICC line.
Port-A-Cath is a subcutaneous port with a self-sealing septum, while PICC line is inserted into the superior vena cava. (correct)
Port-A-Cath is associated with a higher risk of pocket infection, while PICC line has a similar risk of short-term central venous catheter.
Port-A-Cath is inserted into the peripheral vein, while PICC line is inserted into a central vein.

Which of the following is a patient-related risk factor for catheter-related bloodstream infections (CRBSI)?

Insertion of the catheter during emergency procedures.
Presence of a distant infection. (correct)
Use of a multiple lumen catheter.
Poor hand hygiene of the caregiver.

Which type of central venous catheter (CVC) is associated with the lowest risk of catheter-related bloodstream infections (CRBSI)?

Catheters made of steel.
Catheters with multiple lumens.
Non-tunneled catheters.
Tunneled catheters. (correct)

Which pathogen is the most common cause of catheter-related bloodstream infections (CRBSI)?

Coagulase-negative Staphylococcus. (A) Signup and view all the answers

What is the main indication for the use of a central venous catheter (CVC)?

Long-term intravenous access for medication or nutrition. (C) Signup and view all the answers

Which of the following is a device-related risk factor for catheter-related bloodstream infections (CRBSI)?

Shorter duration of catheter use (less than 72 hours). (D) Signup and view all the answers

What is the preferred skin antiseptic for central venous catheter (CVC) insertion?

Chlorhexidine with alcohol (C) Signup and view all the answers

What is the most widely practiced method worldwide for diagnosing catheter-related bloodstream infections (CRBSI) without removing the catheter?

Differential time to positivity (DTP) in automated culture system (C) Signup and view all the answers

Which of the following is NOT a recommended prevention measure during CVC insertion?

Applying antibiotic ointment to the insertion site (A) Signup and view all the answers

Which of the following is a clinical criterion for diagnosing catheter-related bloodstream infection (CRBSI)?

Presence of fever, chills, and hypotension after CVC insertion (C) Signup and view all the answers

Which of the following is a recommended treatment for catheter-related bloodstream infection (CRBSI)?

Broad-spectrum antibiotics initially, then adjust based on the case (B) Signup and view all the answers

Which of the following is a key characteristic of central venous catheters (CVCs)?

They have a longer lifespan compared to peripheral intravenous catheters (A) Signup and view all the answers

Which type of bacteria is most commonly associated with CAUTI in short-term catheterized patients?

Pseudomonas aeruginosa (D) Signup and view all the answers

What is the primary risk factor for CAUTI in long-term catheterized patients?

Morganella morganii (C) Signup and view all the answers

Which of the following is NOT a type of bacteria commonly found in long-term catheterized patients with CAUTI?

Enterococcus faecium (B) Signup and view all the answers

What is the appropriate CFU/ml threshold for asymptomatic bacteriuria in catheterized patients?

>10^5 CFU/ml (C) Signup and view all the answers

What is the most common entry point through which microorganisms reach the bladder in catheterized patients?

Through the catheter itself (D) Signup and view all the answers

Which of the following is NOT a gram-negative bacterium that can cause CAUTI in short-term catheterized patients?