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Table 2 Failure modes identified by Failure Mode and Effects Analysis and their Risk Priority Numbers

From: Application of failure mode and effects analysis (FMEA) to improve medication safety in the dispensing process – a study at a teaching hospital, Sri Lanka

Common failure modes identified by both Team A and Team B

Failure mode

RPN A

RPN B

1 Patient is issued a clinic prescription card belonging to another patient by mistake

20

6

2 Pharmacist dispenses medications to a clinic prescription that should have been dispensed at another clinic dispensing counter

8

8

3 Pharmacist does not check the clinic registration number of the patient

20

6

4 Pharmacist does not check the date of the prescription and age of the patient

16

24

5 Pharmacist misreads the medication name, dose or strength leading to wrong drug error when dispensing

15

16

6 Pharmacist unintentionally misses dispensation of some medications in long prescriptions

24

4

7 Pharmacist fails to identify prescribing errors on prescriptions

12

24

8 Pharmacist misreads the duration of the prescription leading to dispensation of the wrong quantity of medications

8

12

9 Pharmacist does not notify patient on out of stock medications

12

16

10 Pharmacist picks up the wrong medication packet (pre-packed) without checking the label

30

12

11 Pharmacist picks up the medication packet (pre-packed) with the wrong quantity

20

12

12 Pharmacist incompletely labels the medication packet having hand-written or partially hand-written labels

27

24

13 Pharmacist accidentally transcribes an incorrect dose or frequency to the medication label

36

6

14 Pharmacist writes directions (dose, frequency, before/after meals) in unclear handwriting

12

18

15 Pharmacist picks the wrong medication container from the dispensing shelf

8

8

16 Pharmacist does not check the physical appearance of medications in the container before preparation to assess colour and shape of medications for any decompositions

18

8

17 Pharmacist counts the wrong quantity of medications

40

16

18 Pharmacist fills the medications to a wrong envelope which was labelled for another medication

6

12

19 Patient does not understand the language of written instructions and/or verbal instructions given by the pharmacist

4

4

20 Pharmacist fails to tell some important information when giving verbal instructions briefly

12

12

21 Pharmacist gives incomplete instructions for external preparations and/or only give verbal instructions without written instructions (e.g. dermatological preparations)

18

12

22 Pharmacist fails to give verbal instructions

18

8

23 Leaflets may be unavailable and/or pharmacist may forget to give it to the patient

4

3

24 Pharmacist fails to document accountable medications

24

4

Failure modes identified by Team A only (but scored by both teams)

25 Pharmacist incorrectly guesses information on unclear prescriptions

8

18

26 Pharmacist uses an envelope with an incomplete or unclear label stamp to pack medications

12

8

27 Pharmacist fails to check the quality of the medication packing envelope

15

2

28 Pharmacist fills the medications into an unlabeled medication packing envelope

12

8

29 Pharmacist fails to fill a labeled medication packing envelope

18

4

30 Leaflets may be unavailable in different languages (e.g. Tamil)

4

2

31 Pharmacist fails to dispense some filled medication packets to the patient

12

18

32 Pharmacist dispenses unfilled medication packets to the patient

12

4

33 Pharmacist dispenses or patient takes wrong medication packets which are left on the dispensing table

18

8

34 Pharmacist fails to update the accountable medication in manual log books daily

5

2

Failure modes identified by Team B only (but scored by both teams)

35 Pharmacist accidentally mixes-up prescriptions of two paediatric patients from the same family

6

12

36 Pharmacist marks available medications as out of stock medications

1

12

37 Support staff (non-pharmacist) accidentally packs a wrong medication into pre-packed and sealed medication packets

12

12

38 Pre-packed medication packs may contain expired medications

9

9

39 Pre-packed medication packets may be left for longer duration after packing

6

8

40 Pharmacist gives only written medication directions to illiterate patients without verbal/pictorial communication

3

12

41 Pharmacist fails to check the expiry date of the medication

9

6

42 Pharmacist accidentally fills a wrong prescription given by another patient

3

6

  1. RPN A Risk Priority Numbers assigned by Team A; RPN B Risk Priority Numbers assigned by Team B