Table 1 Stability and agreement for the test-retest (n = 28). Removed items are marked into bold font and cursive, retained items marked only cursive.

7 How and how often do you check the identity of a patient when collecting venous blood sampling?

a) I ask the patient to state his/her name...

2/4

28 (100)

0.63

0.62

86%

Ok

Ok

b) I already know the patient...

3/4

27 (96)

0.89

0.71

85%

Ok

Ok

c) I ask the patients relatives

4/4

24 (86)

0.54

0.38

67%

d) I check the patient's ID-card

4/4

28 (100)

0.81

0.69

82%

Ok

Ok

8 If you use stasis when performing venous blood sampling, when do you remove it?

a) Before the first...

4/4

27 (96)

0.72

0.31

48%

Ok

b) During sampling

4/4

26 (93)

0.58

0.46

61%

c) After the sampling is finished

4/4

26 (93)

0.53

0.45

69%

d) If there is difficulty collecting...

4/4

26 (93)

0.72

0.71

81%

Ok

Ok

9 How long do you usually allow your patient to rest

6/6

28 (100)

0.87

0.78

82%

Ok

Ok

10 How often do you carry out the following tasks?

a) If the test tube has an additive...

3/4

28 (100)

0.45

0.47

82%

b) Use an automatic test tube inverter

4/4

26 (93)

0.89

0.89

92%

Ok

Ok

11 What do you do when you are not sure how a sample should be collected?

a) I check printed instructions...

4/4

25 (89)

0.76

0.69

84%

Ok

Ok

b) I check the instructions (internal network)...

4/4

25 (89)

0.96

0.87

92%

Ok

Ok

c) Ask a colleague

4/4

26 (93)

0.83

0.61

73%

Ok

Ok

d) I call the lab

4/4

27 (96)

0.82

0.67

85%

Ok

Ok

12 How do you store the test tubes immediately after sampling?

a) Lying on a workbench or...

4/4

24 (86)

0.78

0.53

83%

Ok

Ok

b) In the pocket...

2/4

24 (86)

1.00

1.00

100%

Ok

Ok

c) In a test-tube stand

4/4

26 (93)

0.99

0.84

92%

Ok

Ok

13 How often does someone else mark the sampling time on the test request?

3/5

27 (96)

0.65

0.53

81%

Ok

14 When do you mark the sampling time on the test request, if you do it yourself?

2/5

26 (93)

0.92

0.91

96%

Ok

Ok

15 How often do you perform the following tasks?

a) Compare the patient's name and...

2/4

28 (100)

0.56

0.47

93%

Ok

b) Use test request that somebody...

4/4

28 (100)

0.69

0.57

75%

Ok

c) Sign the test request

2/4

27 (96)

0.69

0.65

96%

Ok

Ok

d) Check the information...

4/4

27 (96)

0.77

0.57

93%

Ok

Ok

e) Adjust sampling time...

4/4

25 (89)

0.69

0.68

80%

Ok

Ok

f) Check that the test request...

4/4

27 (96)

0.70

0.52

78%

Ok

Ok

16 When do you label the test tube?

a) Before I approach the patient

4/4

28 (100)

0.37

0.33

68%

b) Alongside the patient before...

4/4

27 (96)

0.77

0.33

52%

Ok

c) Alongside the patient after...

4/4

28 (100)

0.77

0.52

64%

Ok

Ok

d) At a later occasion

2/4

27 (96)

0.69

0.65

96%

Ok

Ok

e) Somebody else has labelled the test tube in advance

3/4

27 (96)

0.49

0.52

88%

Ok

Ok

f) Somebody else labels the test tube after sampling

2/4

28 (100)

0.56

0.47

93%

Ok

17 Approximately, how many error reports have you written after observing or making an error in venous blood sampling?

2/2

26 (93)

1.00

1.00

100%

Ok

Ok

18 If you have refrained from writing an error report: What was/were the reason/reasons?

a) I don't have enough time

4/4

25 (89)

0.75

0.49

64%

Ok

b) It wouldn't make any difference

4/4

24 (86)

0.77

0.65

79%

Ok

Ok

c) Nobody else does

3/4

24 (86)

0.77

0.65

83%

Ok

Ok

d) It is too complicated

3/4

23 (82)

0.65

0.56

74%

Ok

e) The head of the PHC writes the error reports

3/4

24 (86)

0.42

0.28

71%

f) I am concerned about possible consequences

2/4

21 (75)

0.09

-0.07

81%

19 To what extent do you agree in the following statements?

a) I have enough knowledge...

2/4

28 (100)

0.59

0.58

86%

Ok

b) Proper collection and handling...

3/4

26 (93)

0.53

0.63

81%

Ok

Ok