ASSE 12080-Legionella-Test Questions
Fully Solved.
Urinary antigen testing - Answer Designed to only detect antigens from legionella
pneumophola serogroup 1. Will NOT detect any other type of Legionella .
A case of legionnaires disease is confirmed by the following tests: - Answer 1. Culture: growth
of any legionella bacteria from respiratory secretions.
2. Urinary antigen test: detection of Legionella pneumophila serigroup 1
3. Detection of antibodies in the blood: the antibody level in the blood taken during the
infection
What is Legionella? - Answer Genus of bacteria responsible for the disease legionellosis
How can the legionella bacteria get from a water source into the king to cause legionnaires -
Answer Aerosolization, aspiration, and during medical procedures
What are the optimal conditions for Legionella growth - Answer Warm water containing
nutrients and other microorganisms
Which of these water sources are likely to have conditions that would promote legionella
growth - Answer Cooling tower, hot tub, warm water in building pipes
What to do when >30% of test sites are positive for Legionella - Answer Resample no sooner
than 7 days and not later than 4 weeks after disinfection
Has the amount of legionella bacteria necessary to cause human disease been determined? -
Answer NO
When taking samples from a cooling tower, where should a sample be collected - Answer
From a cell or basin away from inlet valves and chemical injection points
Legionella specific culture test - Answer Tell you what type and how much legionella bacteria
are present in the sample
Standards - Answer Set of Requirements. Uses terms such as "must" and "shall"
Fully Solved.
Urinary antigen testing - Answer Designed to only detect antigens from legionella
pneumophola serogroup 1. Will NOT detect any other type of Legionella .
A case of legionnaires disease is confirmed by the following tests: - Answer 1. Culture: growth
of any legionella bacteria from respiratory secretions.
2. Urinary antigen test: detection of Legionella pneumophila serigroup 1
3. Detection of antibodies in the blood: the antibody level in the blood taken during the
infection
What is Legionella? - Answer Genus of bacteria responsible for the disease legionellosis
How can the legionella bacteria get from a water source into the king to cause legionnaires -
Answer Aerosolization, aspiration, and during medical procedures
What are the optimal conditions for Legionella growth - Answer Warm water containing
nutrients and other microorganisms
Which of these water sources are likely to have conditions that would promote legionella
growth - Answer Cooling tower, hot tub, warm water in building pipes
What to do when >30% of test sites are positive for Legionella - Answer Resample no sooner
than 7 days and not later than 4 weeks after disinfection
Has the amount of legionella bacteria necessary to cause human disease been determined? -
Answer NO
When taking samples from a cooling tower, where should a sample be collected - Answer
From a cell or basin away from inlet valves and chemical injection points
Legionella specific culture test - Answer Tell you what type and how much legionella bacteria
are present in the sample
Standards - Answer Set of Requirements. Uses terms such as "must" and "shall"
