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Table. 2.

Summary of the survey to blood bank physicians (N=64)

Questionnaire N of respondents (%)
Presence of RBC transfusion guidelines
Yes 63 (98.4)
No 1 (1.6)
Contents of RBC transfusion guidelines*
Shipping and receiving RBC units from the blood center 51 (79.7)
Storage temperature of RBC unit in the blood bank 62 (96.9)
Transport of RBC units to the ward after issue 56 (87.5)
RBC transfusion 51 (81.3)
Standards for discard of RBC unit after issue* 63 (98.4)
Criteria for discard of RBC units after issue or within the blood bank in RBC transfusion guidelines* 63 (98.4)
Exposure to RT for over 30 minutes 62 (96.9)
ST of RBC units to reach 10°C 34 (53.1)
Damaged RBC units 56 (87.5)
Contaminated RBC units 53 (82.8)
Withdrawal of RBC transfusion due to the change of patient’s condition 39 (60.9)
Transfusion-related adverse reactions 48 (75.0)
Transport container to ward after issue
Cooler only 22 (34.4)
Cooler with refrigerant 31 (48.4)
Cooler with refrigerant and TI 1 (1.6)
Others (e.g., cool bag, plastic box, plastic bag) 10 (15.6)
ST monitoring of RBC units at transport after issue 1 (1.6)
Total numbers of blood refrigerators at ward or outpatient clinic 55 (85.9)
1 26 (47.3)
2 12 (21.8)
3 3 (5.5)
≥4 14 (25.4)
Ward with blood refrigerator* 55 (85.9)
GW 3 (5.5)
ICU 21 (38.2)
OR 52 (94.5)
ED 20 (36.4)
OC 1 (1.8)
Crossmatching tests in 2018
< 1,000 2 (3.2)
1,000–4,999 10 (15.9)
5,000–9,999 13 (20.6)
10,000–49,999 32 (50.8)
50,000–99,999 5 (7.9)
≥ 100,000 1 (1.6)
RBC units issued in 2018
< 500 1 (1.6)
500–999 3 (4.8)
1,000–4,999 9 (41.3)
5,000–9,999 21 (33.3)
10,000–49,999 26 (41.3)
≥ 50,000 3 (4.8)
RBC wastage in 2018
<5 6 (9.5)
5–9 10 (15.9)
10–19 11 (17.5)
20–49 16 (25.4)
50–99 15 (23.8)
100–199 4 (6.3)
≥ 200 1 (1.6)
C:T ratio in 2018
1.0 to < 1.1 28 (44.4)
1.1 to < 1.2 16 (25.4)
1.2 to < 1.3 7 (11.1)
1.3 to < 1.4 3 (4.8)
≥ 1.4 9 (14.3)
Expected utility of TIs to reduce RBC wastage
High utility 43 (67.2)
Low utility 21 (32.8)
Reasons of expected low utility of TIs to reduce RBC wastage* 21 (32.8)
Low RBC wastage due to violation of the 30-minute rule 17 (81.0)
Possibility to increase RBC wastage due to a too-fast color change of TIs 11 (52.4)
Intra- or inter-observer variability in reading a color change of TIs 7 (33.3)

*Multiple choice; The number of respondents was 63, excluding one from a newly opened hospital (<1 year).

Abbreviations: RBC, red blood cell; RT, room temperature; TI, temperature-sensitive indicator; ST, surface temperature; GW, general ward; ICU, intensive care unit; OR, operating room; ED, emergency department; OC, outpatient clinic; C:T ratio, crossmatch to transfusion ratio.

Ann Lab Med 2022;42:342~351 https://doi.org/10.3343/alm.2022.42.3.342

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