Table 5 Survey answers regarding diagnostic procedures for Legionnaires’ disease, Norway, 2018
From: Evaluation of the national surveillance of Legionnaires' disease in Norway, 2008-2017
Question | Answer categories | n | % |
|---|---|---|---|
Does the hospital or hospital unit have an internal procedure or algorithm for which patients to test for Legionella? | Yes, one that all doctors should follow | 14 | 30 |
No, it is up to each responsible doctor | 29 | 62 | |
No, other | 1 | 2 | |
Don’t know | 3 | 6 | |
Do you test all patients with suspected pneumonia for Legionella? | Yes | 8 | 17 |
No | 38 | 81 | |
Don’t know | 1 | 2 | |
Do you test all patients with suspected pneumonia and a travel history for Legionella? | Yes | 18 | 38 |
No | 23 | 49 | |
Don’t know | 6 | 13 | |
Which diagnostic test(s) do you use at your unit to diagnose/confirm Legionella? Choose all that apply | Urine antigen test | 44 | 94 |
Culture and isolation | 23 | 49 | |
PCR | 31 | 66 | |
Serology | 3 | 6 | |
Don’t know | 3 | 6 | |
Other (free text) | 1 | 2 | |
Where is the urine antigen test normally carried out? (n = 44) | At the hospital unit | 3 | 7 |
By the hospital laboratory | 35 | 80 | |
It varies, both at the unit and by the laboratory | 4 | 9 | |
Don’t know | 1 | 2 | |
Other (free text) | 1 | 2 | |
Do you try to confirm a positive urine antigen test with culture and isolation of BAL or sputum? (n = 44) | Yes, always | 7 | 16 |
Yes, usually | 21 | 48 | |
Rarely | 8 | 18 | |
No, never | 0 | 0 | |
Don’t know | 8 | 18 | |
What is your routine if the clinical suspicion is LD but the urine antigen test is negative? (n = 44) | Sample for analysis with another method (culture, PCR, serology) | 39 | 89 |
Don’t know | 2 | 5 | |
Other (free text) | 3 | 7 | |
Do you try to confirm a positive PCR result with culture and isolation of BAL or sputum? (n = 31) | Yes, always | 5 | 16 |
Yes, usually | 9 | 29 | |
Rarely | 10 | 32 | |
No, never | 1 | 3 | |
Don’t know | 6 | 19 | |
Do you try to confirm a positive serology result with another diagnostic method? (n = 3) | Yes, always | 0 | 0 |
Yes, usually | 0 | 0 | |
Rarely | 1 | 33 | |
No, never | 0 | 0 | |
Don’t know | 2 | 67 | |
Is a positive serology result confirmed with a new sample with regard to titre increase? (n = 3) | Yes, always | 0 | 0 |
Yes, usually | 0 | 0 | |
Rarely | 1 | 33 | |
No, never | 0 | 0 | |
Don’t know | 2 | 67 |