Category Archives: Presentations

Follow-up of abnormal gynecologic cytology

Jones BA, Novis DA. Follow-up of abnormal gynecologic cytology: a College of American Pathologists Q-Probes study of 16,132 cases from 306 laboratories. Arch Pathol Lab Med. 2000; 124:665-71. See Editorial: Austin RM. Arch Pathol Lab Med. 2000; 124:1113-4.

OBJECTIVES: To measure the percentage of women with abnormal gynecologic cytology who have follow-up within 1 year and to identify patient and laboratory characteristics associated with higher percentages of follow-up.

DESIGN AND SETTING: Retrospective identification of patients with abnormal cervicovaginal cytology and identification of the initial clinical follow-up activity during the 12 months following the cytologic diagnosis.

MAIN OUTCOME MEASURE: Percentage of women receiving follow-up.

RESULTS: Three hundred six laboratories reported follow-up information on 16 132 patients with gynecologic cytology diagnoses of carcinoma, high-grade squamous intraepithelial lesion, low-grade squamous intraepithelial lesion, or glandular intraepithelial lesion. The following percentages of women received follow-up within 1 year: 85.6% of patients with cytologic diagnoses of carcinoma, 87.2% with diagnoses of high-grade squamous intraepithelial lesion, 82.7% with diagnoses of low-grade squamous intraepithelial lesion, and 84.9% with diagnoses of glandular intraepithelial lesion. Within 6 months, 82.2% of patients with cytologic diagnoses of carcinoma, 82.4% with diagnoses of high-grade squamous intraepithelial lesion, 71.9% with diagnoses of low-grade squamous intraepithelial lesion, and 74.7% with diagnoses of glandular intra-epithelial lesion received follow-up. Overall, 90. 8% of patients who received follow-up within the 1-year time frame of this study had their follow-up completed within 6 months. Specific follow-up activities and their frequencies are listed for each diagnostic category. Patients 30 years old or younger and pregnant patients had lower follow-up percentages.

CONCLUSIONS: With less than 83% of patients with high-grade squamous intraepithelial lesion or carcinoma cytology findings having available documentation of follow-up within 6 months, and less than 88% within 1 year, there is room for improvement in this area of health care. Monitoring and critical analysis of the follow-up process is a starting point for improvement.

Morning rounds inpatient test availability

Novis DA, Dale JC. Morning rounds inpatient test availability: A College of American Pathologists Q- Probes study of 79 860 morning CBC and electrolyte test results in 367 institutions. Arch Pathol Lab Med.2000; 124:499-503. (abstract: Yearbook of Pathology and Laboratory Medicine 2002, 374-375)

OBJECTIVES: To determine the success with which laboratories were able to report morning test results on time, the laboratory practice characteristics associated with improved success, and the degree of satisfaction among clinicians with the timeliness of laboratory service.

DESIGN: Hospital laboratories participating in the College of American Pathologist Q-Probes laboratory quality improvement program prospectively calculated the percentages of morning-run complete blood cell count (CBC) and electrolyte results that were reported on or before predetermined reporting deadlines, completed questionnaires concerning their departments’ practice characteristics as they related to performing morning blood work, and distributed to physician utilizers of morning laboratory services questionnaires evaluating physician satisfaction with laboratory services.

SETTING AND PARTICIPANTS: A total of 367 public and private institutions located in the United States (355), Canada (5), Australia (2), and 1 each in the United Kingdom, Spain, Brazil, Korea, and Guam. MAIN OUTCOME MEASURE: The percentages of morning-run CBC and electrolyte results reported on or before predetermined reporting deadlines.

RESULTS: Participants submitted data on 40 256 CBC and 39 604 electrolyte specimens. In aggregate, a total of 88.9% of these tests (90.2% of CBCs and 87.6% of electrolytes) were reported on or before the reporting deadlines that the participating laboratories set for themselves. Half of the participants reported 94.6% of their CBC results and 95.5% of their electrolyte results on or before their self-imposed reporting deadlines. No specific demographic features or departmental practice characteristics were associated with higher or lower rates of institutional reporting compliance. Most physician utilizers of early-morning laboratory test results believed that the laboratory is sensitive to and meets the needs of clinicians for timely reporting of early-morning test results.

CONCLUSIONS: Most laboratories are capable of reporting 95% of their routine morning laboratory tests on time, and most physicians are satisfied with their laboratories’ morning testing service.

 

Reference laboratory telephone service quality

Dale JC, Novis DA, Meier. Reference laboratory telephone service quality. Arch Pathol Lab Med. 2001 May;125(5):608-12.

OBJECTIVES: To establish the rates with which reference laboratories resolve inquiries telephoned to them from primary laboratories and to identify reference laboratory practices associated with higher rates of inquiry resolution.

DESIGN AND PARTICIPANTS: For 2 months, or until 50 contacts had occurred, 545 primary laboratories participating in the College of American Pathologists Q-Probes laboratory quality improvement program prospectively documented and characterized telephone inquiries they made to a reference laboratory of their choice. Participants also cataloged their own laboratory’s demographic and practice characteristics and their reference laboratory’s customer service characteristics.

MAIN OUTCOME MEASURE: Rates with which reference laboratories resolved telephone inquiries.

RESULTS: Participants characterized 11 031 (78.7%) of 14 017 telephone inquiries as resolved by the reference laboratories. Ranked according to inquiry resolution rates, primary laboratories in the 90th percentile characterized reference laboratories as resolving 100% of their inquiries; those in the 10th percentile characterized reference laboratories as resolving only 54.2% of their inquiries. The rate of resolved inquiries was significantly higher (P =.0047) for participants using reference laboratories with 24-hour customer service than it was for participants using reference laboratories with less than 24-hour service. Most primary laboratories (80.9%) chose to monitor 1 of 11 national reference laboratories; in this subset, median rates of inquiry resolution ranged from 90.2% to 55.0% (P <.0001), despite no significant variation in other measured customer service characteristics.

CONCLUSIONS: Primary laboratories experience significant differences in the rates with which reference laboratories resolve telephone inquiries. The performance benchmark for reference laboratories is resolution of at least 90% of telephone inquiries from primary laboratory customers.

Non-Gynecologic Cytology Turnaround Time

Jones BA, Novis DA. Non-Gynecologic Cytology Turnaround Time: A College of America Pathologists Q-Probes Study of 180 Laboratories. Arch Pathol Lab Med: 2001;125:1279-1284.

OBJECTIVES: To determine the turnaround time for nongynecologic cytology and to identify laboratory and specimen characteristics associated with variations in turnaround time.

DESIGN AND SETTING: Prospective evaluation of nongynecologic cytology turnaround times in 180 laboratories.

MAIN OUTCOME MEASURE: Nongynecologic cytology case turnaround time.

RESULTS: Participants from 180 laboratories submitted turnaround times for 16 950 nongynecologic cytology cases and submitted information describing their laboratories’ practice characteristics relating to the processing of nongynecologic cytology specimens. Half of the participating laboratories had mean receipt to report turnaround times of 1.6 calendar days or less and were able to complete 90% of their cases within 3.0 calendar days. Ten percent of participants had mean turnaround times greater than 3.2 days and required 6.0 or more days to report 90% of their cases. Longer turnaround times were associated with processing fluid and fine-needle aspiration specimens, issuing atypical/suspicious for malignancy and nondiagnostic diagnoses, having cytotechnologist students screen slides, having to contact the physician offices for additional information, having to retrieve prior case material for review, and having to perform cell blocks and/or special stains.

CONCLUSION: There is an opportunity for laboratories to shorten nongynecologic turnaround time by altering certain laboratory practices.

Solitary blood cultures

Novis, DA, Dale JC, Schifman RB, Ruby SG, Walsh MK Solitary blood cultures: A College of American Pathologists Q-Probes Study of 132 778 Blood Culture Sets in 333 Small Hospitals. Arch Pathol Lab Med: 2001;125:1285-1289.

OBJECTIVE: To determine the frequency with which solitary blood culture samples were submitted to laboratories serving small hospitals and to ascertain whether certain hospital practices relating to the performance of blood cultures were associated with lower solitary blood culture rates (SBCRs).

DESIGN: Participants in the College of American Pathologists Q-Probes laboratory quality improvement program collected data prospectively on the numbers of solitary blood culture sets from adult patients submitted to their laboratories and answered questions about their institutions’ practice characteristics relating to the collection of blood culture specimens.

SETTING AND PARTICIPANTS: Three hundred thirty-three public and private institutions with a median occupied bed size of 57. Participants were located in the United States (n = 329), Canada (n = 3), and Australia (n = 1).

MAIN OUTCOME MEASURE: The solitary blood culture rate was defined as the number of instances in which only 1 blood culture venipuncture was performed on an individual patient during a 24-hour period divided by the total number of blood culture venipunctures that were performed during the study period. RESULTS: Participants submitted data on 132 778 adult patient blood culture sets. The SBCRs were 3.4% or less in the top-performing 10% of participating institutions (90th percentile and above), 12.7% in the midrange of participating institutions (50th percentile), and 42.5% or more in the bottom-performing 10% of participating institutions (10th percentile and below). In half the participating institutions, the SBCRs for inpatients were 8.3% or less and for outpatients, 22% or less. Solitary blood culture rates were lower for institutions in which phlebotomists rather than nonphlebotomists routinely collected blood culture specimens, in which internal policies required drawing at least 2 blood culture sets, in which hospital personnel contacted clinicians when their laboratories received requests for solitary blood culture sets, and in which quality control programs monitored SBCRs routinely.

CONCLUSIONS: Hospitals can achieve SBCRs under 5%. Those hospitals with particularly high SBCRs may lower their rates by altering certain institutional practices.

Quality indicators of blood utilization

Novis DA, Renner S, Friedberg R, Walsh MK, Saladino AJ. Quality indicators of blood utilization: three College of American Pathologists Q-Probes studies of 12 288 404 red blood cell units in 1 639 hospitals. Arch Pathol Lab Med. 2002; 126:150-156.

A multi hospital study in which measurable indicators were devised to evaluate the efficiency with which healthcare workers utilized transfusable blood units, and to determine whether or not certain transfusion practices were associated with more efficient utilization of transfusable blood. The study was performed in over 1600 hospitals, and the results were reported in the Archives of Pathology. The findings of the study were incorporated into the College of American Pathologists Laboratory Accreditation Program.

OBJECTIVES: To determine the normative rates of blood unit crossmatched to transfused (C:T) ratios, red blood cell (RBC) unit wastage, and RBC unit expiration that exist in hospital communities throughout the United States, and to examine hospital blood bank practices associated with more desirable (lower) rates.

DESIGN: In 3 separate studies, participants in the College of American Pathologists Q-Probes laboratory quality improvement program collected data retrospectively on the number of transfusion crossmatches performed in their institutions and the number of RBC-containing units that were transfused into patients, the number of units that expired (outdated) prior to being utilized, and the number that were wasted due to mishandling. Participants also completed questionnaires describing their hospitals’ and blood banks’ laboratory and transfusion practices.

SETTING AND PARTICIPANTS: One thousand six hundred thirty-nine public and private institutions, well more than 80% of which were known to be located in the United States.

MAIN OUTCOME MEASURES: Quality indicators of blood utilization (namely, the C:T ratio, the rate of RBC unit expiration, and the rate of RBC unit wastage).

RESULTS: Participants submitted data on 12,288,404 RBC unit transfusions. The C:T ratios were 1.5 or less in the top-performing 10% of participating institutions (90th percentile and above), 1.8 to 1.9 in the midrange of participating institutions (50th percentile), and 2.4 or greater in the bottom-performing 10% of participating institutions (10th percentile and below). Red blood cell unit expiration rates were 0.1% or less at the 90th percentile and above, 0.3% to 0.9% at the 50th percentile, and 3.5% or greater at the 10th percentile and below. Red blood cell unit wastage rates were 0.1% or less at the 90th percentile and above, 0.1% to 0.4% at the 50th percentile, and 0.7% or greater at the 10th percentile and below. Depending on which quality indicator was examined, lower values (ie, better performances) were found in institutions that had fewer than 200 hospital beds, no teaching programs, no on-site full-time medical directors of transfusion services, did not utilize maximum surgical blood order schedules, set C:T threshold goals of 2.0 or less, monitored categories of health care workers responsible for RBC wastage, monitored requests for RBC components by transfusion indication, did not accept short-dated units from blood distribution centers, and if they did accept short-dated units, were allowed to return those units to the distribution centers.

CONCLUSIONS: Hospital blood bank personnel can achieve C:T ratios below 2.0, RBC unit expiration rates below 1.0%, and RBC unit wastage rates below 0.5%. Lower C:T ratios and/or RBC unit expiration rates were associated with blood bank personnel setting C:T thresholds of 2.0 or less, monitoring requests for blood components by transfusion indication criteria, monitoring categories of health care workers responsible for blood wastage, not accepting short-dated units from blood distribution centers, and if short-dated units were accepted, being allowed to return those units to the blood distribution center. These practices were not associated with lower blood wastage rates.

Outpatient phlebotomy success and reasons for specimen rejection

Dale JC, Novis DA. Outpatient phlebotomy success and reasons for specimen rejection. A Q-Probes Study. Arch Pathol Lab Med. 2002; 126:416-419.

OBJECTIVES: To determine the rate with which blood collection is successful on the initial phlebotomy encounter, the rate with which laboratory personnel judge specimens unsuitable for analysis, and the practice characteristics associated with fewer unsuccessful collections and fewer rejected specimens.

DESIGN: Clinical laboratories participating in the College of American Pathologists Q-Probes laboratory improvement program prospectively characterized the outcome of outpatient phlebotomies for 3 months or until 20 unsuccessful phlebotomy encounters occurred. By questionnaire, participants provided information about test ordering, patient preparation, and specimen collection.

SETTING AND PARTICIPANTS: Institutions in the United States (n = 202), Canada (n = 4), Australia (n = 3), and South Korea (n = 1).

MAIN OUTCOME MEASURES: Percentage of successful encounters and percentage of unsuitable specimens.

RESULTS: Of 833289 encounters, 829723 were successful. Phlebotomies were unsuccessful because patients were not fasting as directed (32.2%), phlebotomy orders were missing information (22.5%), patients specimens were difficult to draw (13.0%), patients left the collection area before specimens were collected (11.8%), patients were improperly prepared for reasons other than fasting (6.3%), patients presented at the wrong time (3.1%), or for other reasons (11.8%). Only 2153 specimens (0.3%) were unsuitable; these samples were hemolyzed (18.1%), of insufficient quantity (16.0%), clotted (13.4%), lost or not received in the laboratory (11.5%), inadequately labeled (5.8%), at variance with previous or expected results (4.8%), or unacceptable for other reasons (31.1%). Facilities staffed by laboratory-administered phlebotomists reported higher success rates than facilities staffed by nonlaboratory-administered phlebotomists (P =.002).

CONCLUSIONS: Most outpatient phlebotomy encounters are successful and result in specimens suitable for laboratory analysis.

Quality indicators of fresh frozen plasma and platelet utilization

Novis DA, Renner S, Friedberg R, Walsh MK, Saladino AJ. Quality indicators of fresh frozen plasma And platelet utilization: three College of American Pathologists Q-Probes studies of 8 981 796 units of fresh frozen plasma and platelets in 1 639 hospitals. Arch Pathol Lab Med. 2002; 126:527-532.

OBJECTIVE: To determine the normative rates of expiration and wastage for units of fresh frozen plasma (FFP) and platelets (PLTs) in hospital communities throughout the United States, and to examine hospital blood bank practices associated with more desirable (lower) rates.

DESIGN: In 3 separate studies, participants in the College of American Pathologists Q-Probes laboratory quality improvement program collected data retrospectively on the numbers of units of FFP and PLTs that expired (outdated) prior to being used and that were wasted due to mishandling. Participants also completed questionnaires describing their hospitals’ and blood banks’ laboratory and transfusion practices.

SETTING AND PARTICIPANTS: One thousand six hundred thirty-nine public and private institutions, more than 80% of which were known to be located in the United States.

MAIN OUTCOME MEASURES: Quality indicators of FFP and PLT utilization: the rates of expiration and wastage of units of FFP and PLTs.

RESULTS: Participants submitted data on 8 981 796 units of FFP and PLTs. In all 3 studies, aggregate combined FFP and PLT expiration rates ranged from 5.8% to 6.4% and aggregate combined FFP and PLT wastage rates ranged from 2.0% to 2.5%. Among the top-performing 10% of participants (90th percentile and above), FFP and PLT expiration rates were 0.6% or lower and FFP and PLT wastage rates were 0.5% or lower. Among the bottom-performing 10% of participants (10th percentile and below), expiration rates were 13.8% or higher and wastage rates were 6.8% or higher. We were unable to associate selected hospital characteristics or blood bank practices with lower rates of FFP and PLT utilization.

CONCLUSIONS: The rates of FFP and PLT expiration and wastage vary greatly among hospitals in the United States. Hospital blood bank personnel are capable of achieving FFP and PLT expiration and wastage rates below 1%.

Operating room blood delivery turnaround time

Novis DA, Friedberg RC, Renner SW, Meier FA, Walsh MK. Operating room blood delivery turnaround time. A College of American Pathologists Q-Probes study of 12 647 units of blood components in 466 institutions. Arch Pathol Lab Med. 2002; 126:909-914.

OBJECTIVES: To determine the normative distribution of time elapsed for blood bank personnel to fill nonscheduled operating room (OR) blood component orders in hospital communities throughout the United States, and to examine hospital blood bank practices associated with faster blood component delivery times.

DESIGN: Participants in the College of American Pathologists Q-Probes laboratory quality improvement program collected data prospectively on the times elapsed for blood bank personnel to fill nonscheduled emergent orders from hospital ORs for red blood cell (RBC) products, fresh frozen plasma (FFP), and platelets (PLTs). Participants also completed questionnaires describing their hospitals’ and blood banks’ laboratory and transfusion practices.

SETTING AND PARTICIPANTS: Four hundred sixty-six public and private institutions located in 48 states in the United States (n = 444), Canada (n = 9), Australia (n = 8), the United Kingdom (n = 4), and Spain (n = 1).

MAIN OUTCOME MEASURES: The median time elapsed between requests for blood components by OR personnel and the retrieval of those components by blood component transport personnel, and the median time elapsed between requests for blood components by OR personnel and the arrival of those components in ORs.

RESULTS: Participants submitted data on 12 647 units of RBCs, FFP, and PLTs. The median aggregate request-to-retrieval turnaround times (TATs) for RBCs, FFP, and PLTs ranged from 30 to 35 minutes, and the median aggregate request-to-arrival TATs for RBCs, FFP, and PLTs ranged from 33 to 39 minutes. Most of the TAT was consumed by events occurring prior to, rather than after release of components from blood banks. Shorter prerelease TATs were associated with having surgical schedules that listed patients’ names and procedures available to blood bank personnel prior to surgeries, and having adequate clotted specimens in the blood bank and completed type-and-screen procedures performed before requests for blood components were submitted to blood banks. Among the fastest-performing 10% of participants (90th percentile and above), request-to-retrieval TATs ranged from 12 to 24 minutes for the 3 blood components, whereas among the slowest-performing 10% of participants (10th percentile and below), request-to-retrieval TATs ranged from 63 to 115 minutes for the 3 components. Median TATs ranged from 33 to 37 minutes for the 3 components. Institutions with TATs in the fastest-performing 25th percentile more frequently stored cross-matched RBCs in the OR daily, stocked PLTs for unexpected surgical use, stored PLTs in or near the OR, and had laboratory rather than nonlaboratory personnel deliver components to the OR than did those institutions with TATs in the slowest-performing 25th percentile.

CONCLUSIONS: Hospital blood bank personnel can deliver blood components to the OR in slightly longer than 30 minutes, measured from the time that those units are requested by OR personnel. Practices aimed at saving time before components are released from blood banks will be more efficient in reducing overall TAT than those practices aimed at saving time after components are released from blood banks. Specific practices associated with shorter blood delivery TATs included providing blood bank personnel with access to the names of surgical patients potentially requiring blood components, having pretransfusion testing completed on those patients prior to surgery, having ample blood products on hand, and having laboratory personnel control blood product delivery.