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Kari Mortenson
Style GuidePunctuation
Always use serial commas in the text (e.g. red, white, and blue). Never use backslashes to indicate an and or or relationship in headings, subheadings, or
body text. Use backslashes to indicate an and or or relationship in headings or body text of tables,
graphs, and figures. Always use commas to mark thousands within numbers larger than 999 (e.g. 1,000). Always use a complete sentence before a colon is used in a sentence. Use a period to separate the table, graph, or figure number from the table’s title (e.g.
Table 1. Numbers). Never capitalize the first word after a colon unless it would otherwise be capitalized.
Numbers Write out all units of measurement within the text (e.g. percent). Use symbols for units of measurement in tables, graphs, and figures (e.g. %). Write out all numbers if they begin a sentence. Use words for quantities of ten or less in the text, unless the number is referring to an
appendix, table, or graph. Use numerals for quantities more than ten in the text. Use numerals for decimals. Use numerals for all numbers in tables, graphs, or figures. Write out the word zero when referencing no or none in statistics. Write out dates in format: month day, year or month year (e.g. July 4, 2015 or July 2015). Always use commas to mark thousands within numbers larger than 999 (e.g. 1,000).
Tables and Lists Always alphabetize the items in a bulleted list. Always alphabetize the items in a column of a table. Always capitalize the first letter of each item in a bulleted list or table. Always italicize the titles of tables, graphs, and figures. Use a period to separate the table, graph, or figure number from the table’s title (e.g.
Table 1. Numbers). Heading text for tables: 12 point, Arial font, Boldface Body text for tables: 10 point, Arial font
Type Style
Heading 1: 24 point, Arial font, Boldface Heading 2: 16 point, Arial font, Boldface Heading 3: 12 point, Arial font, Boldface Body text: 12 point, Times New Roman font Do not use underlining. Always italicize the titles of tables, graphs, and figures. Heading text for tables: 12 point, Arial font, Boldface Body text for tables: 10 point, Arial font
ABC against medical advice (ama) cell phone(s) Centers for Disease Control and Prevention (CDC)
DEF database e.g. follow-up Food and Drug Administration (FDA)
GHI healthcare Hennepin Regional Poison Center (HRPC) hydrocodone hydromorphone iatrogenic i.e.
JKL Joint Commission (TJC)
MNO meta-analysis
Microsoft Excel Data Analysis Minnesota MU non-critical non-healthcare non-pharmaceutical non-pharmacological North Dakota onsite opioid-naïve opioid(s) oxycodone
PQRS pain killer(s) pharmacists Pharm.D. pick up PubMed RefWorks sentinel South Dakota
TUV T-test teach-back-method therapeutic error timespan Toxicall tri-state twofold unintentional misuse United States
WXYZ
Methods:
HRPC Toxicall Data: Toxicall Search:
Data Collection:
Toxicall is the electronic record system utilized by the HRPC. This record system has
both a free note and a coding section for each case entered. The coding section is based mainly
upon type of call, type of exposure, and type of outcome of the call along with other data.
A retrospective review of HRPC data was performed utilizingemploying the search
criteria “therapeutic errors” and “unintentional misuse” for all calls received forconcerning two
medications: hydrocodone and oxycodone. Therapeutic errors occur when a patient is prescribed
a medication and the medication is taken/ or given incorrectly. Unintentional misuse typically
describes accidental use of a non-pharmacological product. Due to the potential for miscoding,
this review includes unintentional misuse cases were included for completeness in this review.
See Appendix 41 (page 43-44 44-45) for more information regarding what specific types of
exposure for are considered therapeutic errors and or unintentional misuse.
The data collected for this review is from January 2012 – June 2014 for therapeutic errors
and unintentional misuse. Data was also collected regarding all therapeutic errors, for
hydrocodone therapeutic errors and oxycodone therapeutic errors from 2002 – 2013. All data
was pulled from the HRPC database, which services athe tri-state area – of Minnesota, North
Dakota, and South Dakota. The HRPC does occasionally receive phone calls from other states
occasionally due to the cell phone use of cell phones. All calls are received through a 1-800
number and then routed to the appropriate regional poison center according to area code. Calls
received out of the tri-state are not excluded from included in this retrospective review.
Data Analysis
Microsoft Excel Data Analysis tools were used for all statistical analyses. The total
number of calls received for oxycodone and hydrocodone therapeutic errors and unintentional
misuse was calculated and compared to the total number of therapeutic error calls received
inwithin the same time frame. From there, a percentage was generated to determine the percent
of therapeutic error callers who have had accidently overdosed on these two opioids within the
time span of this study this study’s timespan.
Microsoft Excel Data Analysis tools were used for all statistical analysis. The percentage
of oxycodone and hydrocodone specific therapeutic error calls was determined. The data on
therapeutic errors and unintentional misuse from 2012 – 2014 was analyzed through a T-test to
determine if there was a statistically significant increase in the number of calls from one year to
the next. Additionally, the percentage of all therapeutic error calls was analyzed for these the
same categories as well.
Literature Review Information
Accidental OverdoseInformation Collection
A retrospective literature review was performed to evaluate the current dosagesing,
overdose rates, and other information related to opioid medications. Databases used to complete
this literature review included PubMed and RefWorks to complete this literature review. Search
terms used included: opioid, opioid- naïve, counseling, dosing, overdosing, accidental,
inadvertent, adverse effects, pharmacist, therapeutic error, misuse, patient, health care team, and
guidelines. Combinations of search terms used included: pharmacist counseling opioids,
pharmacists review opioid dosing, patient opioid dosing, patient overdosing opioids, patient
accidental overdose opioids, pharmacist on health care team, patient inadvertent overdose
opioids, current opioid dosing guidelines, etc.
There is limited research relating to patients who accidently overdose on opioids
accidental opioid overdose in patients. A plethora of data is available related to intentional abuse
and misuse; however, this was not the topic of study here. All papers which containinged data
solely specific to opioid abuse and misuse and abuse were omitted from thise literature review.
Due to limited data, retrospective and meta-analysis studies were utilized for this literature
review.
Specific Iinclusion criteria was used when deciding which studies to include in this
literature review.: All studies used in this article included a patient population size greater than
10ten patients. Patients in each study arewere over the age 18 years old of age. All patients
provided informed consent for all studies. Patients who havehad been changed from one opioid
to another cancould still be considered for this studyreview. The Iindication for opioid
medication must have been pain management.
Specific Eexclusion criteria was used as well.: Patients who havehad been changed from
an opioid medication to other pain control willwere not be considered for this research. The only
indication considered in this study review iswas pain treatment; all other indications for opioids
willwere not be considered in this study.
Results:
Poison Center Data:
All Therapeutic Errors 2012 – 2014:
The HRPC Toxicall data shows a total of 19,672 calls were placed from 2012 – 2014
regarding a therapeutic error related to any medication. Of these calls, 17,327 (88.08% percent)
were managed at home with no need for the patient to seek medical attention. A total of 1,715
(8.72% percent) of callers were seen at / or admitted to a health care facility for evaluation.
Those admitted to a healthcare facility were broken down into subcategories as follows: 1,104
(5.61% percent) were treated /or evaluated and released, 96 (0.49% percent) were admitted to a
critical care unit, 268 (1.36% percent) were admitted to a non-critical care unit, 15 (0.08%
percent) were admitted to a psychiatric facility, 229 (1.16% percent) were lost to follow-up /or
left against medical advice, and 3three (0.02% percent) had an unspecified level of care. There
were 547 (2.78% percent) of callers who are listed as other. There arewere 72 (0.37% percent)
of callers who refused a referral and 11 (0.06% percent) of calls for which the level of care iswas
unknown. See Tables 1a and 1b in Appendix 1 2 for a summary of this data.
Hydrocodone Therapeutic Errors:
The HRPC Toxicall data shows a total of 284 calls to the HRPC regarding a therapeutic
error related to hydrocodone. Of these calls, 232 (81.69 percent) were managed at home with no
need for the patient to seek medical attention. A total of 39 (13.73% percent) callers were seen
at/ or admitted to a health care facility for evaluation. Those admitted to a health care facility
arewere broken down into subcategories as follows: 21(7.39% percent) were treated/ or
evaluated and released, 4four (1.41% percent) were admitted to a critical care unit, 7seven
(2.46% percent) were admitted to a non-critical care unit, 1one (0.35% percent) werewas
admitted for psychiatric facility, and 6six (2.11% percetn) were lost to follow-up/ or left against
medical advice. There were 4four (1.41% percent) callers in the other category, and 9nine
(3.17% percent) callers who refused referral. See Tables 2a and 2b in Appendix 12 for a
summary of this data.
Hydrocodone Unintentional Misuse:
The Toxicall data shows a total of 22 calls to the HRPC regarding an unintentional
misuse related to hydrocodone. Of these calls, 13 (59.09% percent) were managed at home with
no need to be seen in a health care facility. A total of 9nine (40.91% percent) were seen at/ or
admitted to a health care facility for evaluation. Those admitted to a health care facility arewere
broken down into subcategories as follows: 5five (22.73% percent) were treated/ or evaluated
and released, 1one (4.55% percent) werewas admitted to a critical care unit, 3three (13.64%
percent) were admitted to a non-critical care unit. NoZero callers were lost to follow-up/ or left
against medical advice orand zero callers were recorded in the other or refused referral category.
See Tables 3a and 3b in Appendix 12 for a summary of this data.
Oxycodone Therapeutic Errors:
The Toxicall data shows a total of 294 calls to the HRPC regarding a therapeutic error
related to oxycodone. Of these calls, 240 (81.63% percent) were managed at home with no need
to be seen in a health care facility. A total of 50 (17.01% percent) were seen at /or admitted to a
health care facility for evaluation. Those admitted to a health care facility arewere broken down
into subcategories as follows: 29 (9.86% percent) were treated/ or evaluated and released, 3three
(1.02% percent) were admitted to a critical care unit, 8eight (2.72% percent) were admitted to a
non-critical care unit, 1one (0.34% percent) werewas admitted for psychiatric facility, and 9nine
(3.06% percent) were lost to follow-up/ or left against medical advice. There were 0zero callers
(0%) who refused referral. Additionally, 3three callers (1.02% percent) callers arewere listed as
other and 1one caller (0.34% percent) caller was listed as unknown. See Tables 4a and 4b in
Appendix 12 for a summary of this data.
Appendix 12: Results Data Tables
Category All Therapeutic Errors
Managed onsite 17,327
Managed at healthcare facility* 1,715
Other 547
Refused referral 72
Unknown 11
Total 19,672*Table 1b details the subcategories of cases admitted to healthcare facilities
Table 1a. All Therapeutic Error Calls to the Hennepin County Regional Poison Center from January 1, 2012 to June 30, 2014
Subcategory All Therapeutic Errors
Admitted to critical care unit 96
Admitted to non-critical care unit 268
Admited to psychiatric facility 15
Lost to follow-up/left against medical advice 229
Treated/evaluated and released 1,104
Unspecified level of care 3
Total 1,715
Table 1b. Subcategories of All Therapeutic Error Calls to the Hennepin Country Regional Poison Center Managed in a Healthcare Facility from January 1, 2012 to June 30, 2014
Therapeutic Errors All
Category Subcategory Number
Managed on site/non-healthcare facility 17327
Managed in healthcare facilityTreated/evaluated and
released 1104
Admitted to critical care unit 96
Admitted to noncritical care unit 268
Admitted to psychiatric facility 15
Patient lost to follow-up/left AMA 229
Unspecified level of care 3Subtotal 1715
Other 547Refused referral 72
Unknown 11Total 19672
Table 1. All Therapeutic Errors from 1/1/2012 – 6/30/2014. This table provides the number of calls received in each category at the Hennepin County Regional Poison Center regarding therapeutic errors for any medication.
Category All Therapeutic Errors
Hydrocodone Therapeutic Errors (Percent of Therapeutic Errors)
Managed onsite 17,327 232 (1.34%)
Managed at healthcare facility* 1,715 39 (2.27%)
Other 547 4 (0.73%)
Refused Referral 72 9 (12.50%)
Unknown 11 0 (0.00%)
Total 19,672 284 (1.44%)*Table 2b details the subcategories of cases admitted to healthcare facilities
Table 2a. All Hydrocodone Therapeutic Error Calls to the Hennepin County Regional Poison Center from January 1, 2012 to June 30, 2014
Subcategory All Therapeutic Errors
Hydrocodone Therapeutic Errors (Percent of Therapeutic Errors)
Admitted to critical care unit 96 4 (4.17%)
Admitted to non-critical care unit 268 7 (2.61%)
Admitted to psychiatric facility 15 1 (6.67%)
Lost to follow-up/left against medical advice 229 6 (2.62%)
Treated/evaluated and released 1,104 21 (1.90%)
Unspecified level of care 3 0 (0.00%)
Total 1,715 39 (2.27%)
Table 2b. Subcategories of All Hydrocodone Therapeutic Error Calls to the Hennepin Country Regional Poison Center Managed in a Healthcare Facility from January 1, 2012 to June 30, 2014
Therapeutic Errors All Hydrocodone Therapeutic Error
Category Subcategory Number Number Percent of TEManaged on
site/non-healthcare
facility 17327 232 1.34%Managed in healthcare
facilityTreated/evaluated
and released 1104 21 1.90%
Admitted to critical care unit 96 4 4.17%
Admitted to noncritical care
unit 268 7 2.61%Admitted to psychiatric
facility 15 1 6.67%Patient lost to follow-up/left
AMA 229 6 2.62%Unspecified level
of care 3 0 0.00%Subtotal 1715 39 2.27%
Other 547 4 0.73%Refused referral 72 9 12.50%
Unknown 11 0 0.00%Total 19672 284 1.44%
Table 2. Therapeutic Errors and percentage of errors for Hydrocodone from 1/1/2012 – 6/30/2014. This table provides the number of calls received in each category at the Hennepin County Regional Poison Center regarding therapeutic errors for any hydrocodone.
Category All Therapeutic Errors Hydrocodone Unintentional Misuse
(Percent of Therapeutic Errors)
Managed onsite 17,327 13 (0.08%)
Managed at healthcare facility* 1,715 9 (0.52%)
Other 547 0 (0.00%)
Refused referral 72 0 (0.00%)
Unknown 11 0 (0.00%)
Total 19,672 22 (0.11%)*Table 3b details the subcategories of cases admitted to healthcare facilities
Table 3a. All Hydrocodone Unintentional Misuse Calls to the Hennepin County Regional Poison Center from January 1, 2012 to June 30, 2014
Subcategory All Therapeutic Errors Hydrocodone Unintentional Misuse
(Percent of Therapeutic Errors)
Admitted to critical care unit 96 1 (1.04%)
Admitted to non-critical care unit 268 3 (1.12%)
Admitted to psychiatric facility 15 0 (0.00%)
Lost to follow-up/left against medical advice 229 0 (0.00%)
Treated/evaluated and released 1,104 5 (0.45%)
Unspecified level of care 3 0 (0.00%)
Total 1,715 9 (0.52%)
Table 3b. Subcategories of All Hydrocodone Unintentional Misuse Calls to the Hennepin Country Regional Poison Center Managed in a Healthcare Facility from January 1, 2012 to June 30, 2014
Therapeutic Errors All Hydrocodone Unintentional Misuse
Category Subcategory Number Number Percent of TEManaged on
site/non-healthcare
facility 17327 13 0.08%Managed in healthcare
facilityTreated/evaluated
and released 1104 5 0.45%
Admitted to critical care unit 96 1 1.04%
Admitted to noncritical care
unit 268 3 1.12%Admitted to psychiatric
facility 15 0 0.00%Patient lost to follow-up/left
AMA 229 0 0.00%Unspecified level
of care 3 0 0.00%Subtotal 1715 9 0.52%
Other 547 0 0.00%Refused referral 72 0 0.00%
Unknown 11 0 0.00%Total 19672 22 0.11%
Table 3. Unintentional Misuse of Hydrocodone and percentage calls from 1/1/2012 – 6/30/2014. This table provides the number of calls received in each category at the Hennepin County Regional Poison Center regarding unintentional misuse calls for hydrocodone.
Category All Therapeutic Errors Oxycodone Therapeutic Errors (Percent of
Therapeutic Errors)
Managed onsite 17,327 240 (1.93 %)
Managed at healthcare facility* 1,715 50 (2.92%)
Other 547 3 (0.55%)
Refused referral 72 0 (0.00%)
Unknown 11 1 (9.09%)
Total 19,672 294 (1.49%)*Table 4b details the subcategories of cases admitted to healthcare facilities
Table 4a. All Oxycodone Therapeutic Error Calls to the Hennepin County Regional Poison Center from January 1, 2012 to June 30, 2014
Subcategory All Therapeutic Errors Oxycodone Therapeutic Errors (Percent of
Therapeutic Errors)
Admitted to critical care unit 96 3 (3.13%)
Admitted to non-critical care unit 268 8 (2.99%)
Admitted to psychiatric facility 15 1 (6.67%)
Lost to follow-up/left against medical advice 229 9 (3.93%)
Treated/evaluated and released 1,104 29 (2.63%)
Unspecified level of care 3 0 (0.00%)
Total 1,715 50 (2.92%)
Table 4b. Subcategories of All Oxycodone Therapeutic Error Calls to the Hennepin Country Regional Poison Center Managed in a Healthcare Facility from January 1, 2012 to June 30, 2014
Therapeutic Errors All Oxycodone Therapeutic Error
Category Subcategory Number Number Percent of TEManaged on
site/non-healthcare
facility 17327 240 1.39%Managed in healthcare
facilityTreated/evaluated
and released 1104 29 2.63%
Admitted to critical care unit 96 3 3.13%
Admitted to noncritical care
unit 268 8 2.99%Admitted to psychiatric
facility 15 1 6.67%Patient lost to follow-up/left
AMA 229 9 3.93%Unspecified level
of care 3 0 0.00%Subtotal 1715 50 2.92%
Other 547 3 0.55%Refused referral 72 0 0.00%
Unknown 11 1 9.09%Total 19672 294 1.49%
Table 4. Therapeutic Errors for oxycodone and percentage of errors from 1/1/2012 – 6/30/2014. This table provides the number of calls received in each category at the Hennepin County Regional Poison Center regarding therapeutic errors for oxycodone.
Appendix 41: Definitions and Further
Explanation
Therapeutic Error Definition according to Toxicall:
According to Toxicall, a therapeutic error Ooccurs when a patient’s prescription medication
which is prescribed for a patient is taken/ or given incorrectly. for a variety of different reasons.
Therapeutic Eerrors include:
Incorrect dispensing route
Dispensing cup error
10ten-fold dosing error
Inadvertently took/ or givengave medication twice
Incorrect formulation or concentration dispensed
Wrong medication taken/ or given
Health professional/ or iatrogenic error (e.g. pharmacist/,nurse/,physician)
Exposure through breast milk
More than 1one product containing the same ingredient
Medication doses given/ or taken too close together
Confused units of measure
Other incorrect dose
Drug interactions
Other/ or unknown therapeutic error
Unintentional Misuse Definition According to Toxicall:
According to Toxicall, unintention misuse is the Uunintentional, improper, or incorrect use of a
non-pharmaceutical substance. Unintentional misuse differs from intentional misuse in that
because the exposure was unplanned or not unforeseen by the patient. Unintentional misuse
Iincludes:
A person who mMisread or unread (or didn’t read) a product label
Exposure through incorrect use of a product
Exposure occurred due to forgetfulness that product was placed in a different receptacle
than its typical packaging.