Items

Breakdown

Cases (n = 141)

%

Medical Examination

Mistake of specimen collection

23

16.3

Mistake of specimen

9

6.4

Mistake of correct patients

8

5.7

Mistake of laboratory technique and judgement technique

6

4.3

Report of results

5

3.5

Laboratory equipment, preparation of medical instrument

3

2.1

Damage of specimen

3

2.1

Contamination of specimen

2

1.4

Mistake of data management

2

1.4

Management of reagent

1

0.7

Calculation, inputting, memorizing

0

0.0

Management of analytical instrument and laboratory equipment

0

0.0

Others

79

56.0