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Dispensing System |
Failure Modes |
Occurrence /Likelihood of Failure Mode 1-10^ |
What is the effect of this failure and severity rating (NCC MERP?) |
Causes of failures and quantify failures |
Probability of Detection When Failure Mode Occurs 1-10* |
Action to reduce cause of failure modes
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Revised RPN |
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1.Stored on unit in machine by drug, JIT from machine, machine fill is assembled and batched based on volume, new or changed order to dispensing time = 1 hour Patient specific meds are delivered for a 24 hr period in the med room in a patient specific drawer Typical Dispensing Machine Scenario RPN= |
Discontinued meds
Narcotics diversion
Non-standard doses
New Drug/First Dose
Fill Errors
Nurse Workarounds
Refrigerated and IV meds
Multi-dose medications
|
10
5
3
6
3
7
3
4
|
Incorrect medications or incorrect dose can be given to patient
Clinical staff may be practicing in a impaired state Patient receives either too little or too much medication Patient may receive incorrect medication, dose or route Patient may receive medication not prescribed for him
Chance of patient receiving wrong med, dose or route increases Patient receives an incorrect medication, dose or route as visual scan the only safety check Patient receives an incorrect medication, dose or route as there is no double check and discontinued meds may be available
|
Could be left in refrigerator if not part of the dispensing machine; multi-dose vials would be left in a drawer Possible through observing nurse code
Nurse must assemble dose at time of administration First dose can be taken from Pyxis bypassing pharmacist check Medications can be placed in the wrong storage bin inside the dispensing machine and into the wrong patient drawer
Likelihood depends on proximity of machine to patient room Meds are stored in a central refrigerator; IVs kept in separate location; safety check for the medication is a visual scan Requires additional storage in patient-designated drawer or refrigerator; if in Pyxis refrigerator, nurse has to draw up pt. dose from a large non-patient specific bottle |
5
10
4
1
5
8
5
7
|
Clinical pharmacist on floor who can enter and check new orders JIT Bar-coding and scanning are crucial error trap
Non standard dosing is assembled in pharmacy Nurse-specific swipe card or thumb print for narcotics Refrigerator on dispensing medications and discontinued refrigerated medications are picked up on a twice daily schedule Use of dispensing machine screen to get all medication information re: current meds, discontinued med. information |
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2. Stored on unit in dispensing machine by drug, JIT from machine, fill is assembled and batched based on volume, order to dispensing time = 1 hour; all medications not stored in dispensing machine are delivered to floor within 3 hours of administration by pharm. techs, discontinued meds picked up every 3 hours,
# 2= 1 + Continuous Flow for Patient-Specific Meds Scenario
|
Discontinued meds
Narcotics diversion
Non-standard doses:
New Drug/First Dose:
Fill Errors
Nurse Workarounds
Refrigerated and IV meds
Multi-dose medications |
7
6
1
4
3
7
3
1 |
Incorrect medications or incorrect dose can be given to patient
Clinical staff may be practicing in a impaired state Patient receives either too little or too much medication Patient may receive incorrect medication, dose or route Patient may receive medication not prescribed for him
Chance of patient receiving wrong med, dose or route increases Patient receives an incorrect medication, dose or route as visual scan the only safety check Patient receives an incorrect medication, dose or route as there is no double check and discontinued meds may be available
|
Could be left in refrigerator if not part of the dispensing machine and multi-dose vials would be left in a drawer for up to 3 hours with an every 3-hour delivery/pick-up Possible through observing other nurses' codes
Delivered every 3 hours- not stored on unit or assembled by nurse 3 hour delivery service (First ordered dose could be put on 3hr schedule) Medications can be placed in the wrong storage bin inside the dispensing machine Likelihood depends on proximity of machine to patient room meds stored in a centrally located refrigerator; IVs kept in separate location
Delivered every 3 hours so requires no storage in patient-designated drawer
|
5
10
1
1
4
8
5
2 |
Clinical Pharmacist on floor to approve new meds would speed up administration Bar coding and scanning meds and patient Nurse-specific swipe card for narcotics Use of dispensing machine screen to get all medication information re: current meds, discontinued med. information
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3. All medications dispensed from pharmacy to patient room on unit and discontinued meds picked up every 3 hours by pharm tech. Narcotics centrally available through Pyxis Made to Order and Delivered to Room Scenario
|
Discontinued meds
Narcotics diversion
Non-standard doses
New Drug/First Dose
Fill Errors
Nurse Workarounds
Refrigerated and IV meds
Multi-dose medications |
2
6
1
1
3
1
2
2 |
incorrect medications or incorrect dose can be given to patient Clinical staff may be practicing in a impaired state Patient receives either too little or too much medication Patient may receive incorrect medication, dose or route Patient may receive medication not prescribed for him Chance of patient receiving wrong med, dose or route increases Patient receives an incorrect medication, dose or route as visual scan the only safety check Patient receives an incorrect medication, dose or route as there is no double check and discontinued meds may be available
|
In patient specific storage bin until pick up
possible through observing nurse code;
Non-standard doses assembled and delivered to room Received in 1 hour from pharmacy or as part of the 3 hour delivery service Individual dispensing machine fill errors are possible Almost Eliminated
Most medications are stable in a syringe for 24 hours; IVs kept in separate location
Kept in patient-specific medication storage bin or central refrigerator |
2
10
1
1
5
1
4
3 |
Bar coding and scanning meds and patient Nurse-specific swipe card for narcotics |
|
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4. Patient specific meds (UNIT DOSED) in a patient specific drawer are delivered for a 24 hr period in the med cart that is batched and filled in pharm floor stock IVs separate Refrigerator separate |
Discontinued meds
Narcotics diversion
Non-standard doses:
New Drug, First Dose:
Fill Errors
Nurse Workarounds:
Refrigerated and IV meds
Multi-dose medications |
10
5
3
8
5
10
3
2 |
|
5
5
3
9
7
9
5
2 |
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4. Scenario 1 or 2 plus patient-specific meds loaded in a temporary drug location (cubie) in dispensing machine every 24 hours; Pure Decentralization- one Scenario
|
Discontinued meds
Narcotics diversion
Non-standard doses:
New Drug/First Dose:
Fill Errors
Nurse Workarounds:
Refrigerated and IV meds
Multi-dose medications |
10
6
3
6
3
7
3
4
|
incorrect medications or incorrect dose can be given to patient Clinical staff may be practicing in a impaired state Patient receives either too little or too much medication Patient may receive incorrect medication, dose or route Patient may receive medication not prescribed for him
Chance of patient receiving wrong med, dose or route increases Patient receives an incorrect medication, dose or route as visual scan the only safety check Patient receives an incorrect medication, dose or route as there is no double check and discontinued meds may be available
|
In pt-specific drawer until administration or pick up
Possible through observing nurse code;
Non standard doses delivered every 24 hours
Checked by pharmacist in pharmacy and received in 1 hour from pharmacy Medications can be placed in the wrong storage bin inside the dispensing machine and into the wrong patient cubie Likelihood depends on proximity of machine to patient room Meds are stored in a central refrigerator; IVs kept in separate location
Requires additional storage in patient cubie or refrigerator; if in dispensing machine refrigerator, nurse has to draw up pt. dose from a large non-patient specific bottle |
5
10
4
1
5
8
5
7 |
Clinical Pharmacist on floor to approve new meds Non standard dosing is assembled in pharmacy Discontinued medications are picked up on a twice daily schedule Bar coding and scanning meds and patient Refrigerator on dispensing machine and discontinued refrigerated medications are picked up on a twice daily schedule Nurse-specific swipe card for narcotics Use of dispensing machine screen to get all medication information re: current meds, discontinued med. information |
^10= very likely to occur, 1= very unlikely to occur
* 10= very unlikely to detect, 1= very likely to detect