Author Question: A 77-year-old male is experiencing urinary frequency and an increased need to void at night. His ... (Read 23 times)

crobinson2013 · **on:** Jun 25, 2018

A 77-year-old male is experiencing urinary frequency and an increased need to void at night. His physician suspects a urinary tract infection and has the patient submit urine for culture.

If the urine culture demonstrates bacterial growth, how will the microbiology laboratory define a urinary tract infection for this individual?
A) A pooled 24 clean catch voided urine with >100,000 CFU/mL of one bacterial species
B) A single catheterized urine with >103 CFU/mL of one bacterial species
C) Two consecutive clean catch voided urines with >100,000 CFU/mL of one bacterial species
D) A single clean catch voided urine with >105 organisms/mL of one bacterial species

Question 2

Infections of indwelling devices, such as intravenous catheters, are often caused by catalase-positive, gram-positive cocci that are

A) coagulase negative and novobiocin susceptible.
B) coagulase negative and novobiocin resistant.
C) caogulase positive and thermonuclease positive.
D) coagulase positive and thermonuclease negative.