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Table 2 Motor vehicle crash incidents by medical priority dispatch Code (MPDS) and lights and sirens ambulance (L&S) response

From: A predictive ambulance dispatch algorithm to the scene of a motor vehicle crash: the search for optimal over and under triage rates

MPDS dispatch code

 

Not L&S

L&S

Total

Total

Brief descriptor

n

n

n

Col %

29D1

Major incident

7

1

8

0.1%

29D1V

Major incident, multiple patients

2

0

2

0.0%

29D1b

Major incident—bus

5

1

6

0.1%

29D1d

Major incident—train

1

2

3

0.0%

29D1f

Major incident—multiple vehicle (≥ 10) pile-up

4

0

4

0.0%

29D2

High mechanism

257

78

335

2.8%

29D2k

High mechanism—all-terrain/snowmobile

2

0

2

0.0%

29D2l

High mechanism- vehicle v. bicycle/motorcycle

905

247

1,152

9.6%

29D2m

High mechanism—vehicle v. pedestrian

672

169

841

7.0%

29D2n

High mechanism—ejection

80

34

114

1.0%

29D2p

High mechanism—rollovers

377

67

444

3.7%

29D2r

High mechanism—possible death at scene

0

1

1

0.0%

29D3

HAZMAT

67

10

77

0.6%

29D3U

HAZMAT, unknown number of patients

3

1

4

0.0%

29D3V

HAZMAT, multiple patients

19

3

22

0.2%

29D3X

HAZMAT, unknown number of patients and additional response required

1

0

1

0.0%

29D3Y

HAZMAT, multiple patients and additional response required

3

0

3

0.0%

29D4

Trapped victim

338

126

464

3.9%

29D4U

Trapped victim, unknown number of patients

59

23

82

0.7%

29D4V

Trapped victim, multiple patients

124

64

188

1.6%

29D4X

Trapped victim, unknown number of patients and additional response required

3

2

5

0.0%

29D4Y

Trapped victim, multiple patients and additional response required

28

21

49

0.4%

29D4n

Trapped victim, ejection

3

0

3

0.0%

29D5

Not alert

325

153

478

4.0%

29D5U

Not alert, unknown number of patients

5

2

7

0.1%

29D5V

Not alert, multiple patients

47

21

68

0.6%

29D5X

Not alert, unknown number of patients and additional response required

0

1

1

0.0%

29D5Y

Not alert, multiple patients and additional response required

3

2

5

0.0%

29D5m

Not alert, vehicle v. pedestrian

0

2

2

0.0%

29D5n

Not alert, ejection

2

4

6

0.1%

29B1

Injuries

2,098

237

2,335

19.5%

29B1U

Injuries, unknown number of patients

41

8

49

0.4%

29B1V

Injuries, multiple patients

470

56

526

4.4%

29B1X

Injuries, unknown number of patients and additional response required

6

1

7

0.1%

29B1Y

Injuries, multiple patients and additional response required

57

5

62

0.5%

29B2

Serious haemorrhage

126

31

157

1.3%

29B2V

Serious haemorrhage, multiple patients

23

3

26

0.2%

29B2X

Serious haemorrhage, unknown number of patients and additional response required

1

0

1

0.0%

29B2Y

Serious haemorrhage, multiple patients and additional response required

5

3

8

0.1%

29B3

Other hazards

589

76

665

5.6%

29B3U

Other hazards, unknown number of patients

71

8

79

0.7%

29B3V

Other hazards, multiple patients

214

29

243

2.0%

29B3X

Other hazards, unknown number of patients and additional response required

6

2

8

0.1%

29B3Y

Other hazards, multiple patients and additional response required

33

4

37

0.3%

29B4

Unknown status/Other codes not applicable

2,054

185

2,239

18.7%

29B4U

Unknown status/Other codes not applicable, unknown number of patients

429

36

465

3.9%

29B4V

Unknown status/Other codes not applicable, multiple patients

442

37

479

4.0%

29B4X

Unknown status/Other codes not applicable, unknown number of patients and additional response required

29

4

33

0.3%

29B4Y

Unknown status/Other codes not applicable, multiple patients and additional response required

31

5

36

0.3%

29A1

1st party caller with injury to not dangerous body area

16

0

16

0.1%

29A1V

1st party caller with injury to not dangerous body area, multiple patients

1

0

1

0.0%

29O1

No injuries (confirmed)

116

6

122

1.0%

Total

 

10,200

1,771

11,971

100.0%