List of works
Journal article
Protocols to Dissolve Amorphous Urate Crystals in Urine
Published 05/05/2022
Laboratory medicine, 53, 3, e63 - e68
Objective Amorphous urate crystals can obscure significant findings during a routine urinalysis. There is no standardized protocol to minimize their effect.
Materials and Methods We tested 210 urine specimens. Three specimens had high red blood cell (RBC) or white blood cell (WBC) counts. Fifty-six specimens formed amorphous urates. Sediment from these specimens was treated with 50 mM sodium hydroxide (NaOH) at a 1:2 and/or 1:4 dilution. We warmed 22 specimens with crystals at various temperatures.
Results Amorphous urate crystals formed in concentrated urine with an acidic pH. Adding 50 mM NaOH dissolved amorphous urates, revealing the presence of underlying bacteria and yeast, but WBC and RBC counts were grossly decreased. Prewarming unspun specimens to 60 degrees C for 90 seconds dissolved most amorphous urates.
Conclusion The protocol to eliminate amorphous urate crystals is to prewarm the specimen before testing. Adding 50 mM NaOH to sediment dissolves amorphous urates to enhance the visibility of bacteria and yeast but has a deleterious effect on WBC and RBC.
Teaching case study
Clinical Laboratory No. 2109: Hematology
Published 2021
Lab Q Clinical Laboratory
On completion of this exercise, the participant should be able to
-classify the presentation of cold agglutinin disease as primary or secondary based on patient history and laboratory findings;
-analyze discrepancies in complete blood cell count results that occur in cases of cold agglutinin disease;
-justify the need for a manual platelet estimate in low platelet counts by automated analyzers;
-use the correct calculation to perform platelet estimates in samples with low red blood cell counts; and
-discuss 3 mechanisms that can be used to correct complete blood cell count results altered by cold agglutinins.
Journal article
Strategies for sustainability of university-based medical laboratory sciences programs
Published 2021
Laboratory Medicine, 52, 420 - 425
The COVID-19 pandemic has taken a major toll on the economy and funding for public education. For that reason, the pandemic has a worrisome effect on the sustainability of university/college based Medical Laboratory Sciences MLS training programs. Stakeholders of university-based MLS programs include university administrators, students, clinical affiliates and faculty. Each group has specific goals and challenges that affect the sustainability of the program. This report details strategies that can be used to satisfy the goals specific to key stakeholders that lead to sustainability. These strategies apply in pandemic times and in the back-to-normal future.
Abstract
The Benefits of Rolling Admission to a University-Based Medical Laboratory Sciences Program
Published 2020
Clinical laboratory science
Clinical Laboratory Educators Conference (CLEC), 02/2020, Orlando, FL
Teaching case study
Clinical Laboratory No. 2001: Phlebotomy
Published 2020
Lab Q Clinical Laboratory
On completion of this exercise, the participant should be able to
- define sepsis and septic shock;
- explain the rationale for collecting blood cultures STAT in patients with sepsis;
- evaluate lactic acid levels in sepsis therapy;
- interpret abnormal laboratory results to help identify intravenous (IV)-fluid contamination of specimens; and
- describe the recommended method to collect blood when IV lines are present.
Journal article
Introducing Interprofessional Education to BSN and CLS Students Using a Simulated Healthcare Setting
Published 10/01/2017
Clinical laboratory science, 30, 4, 224 - 227
Healthcare professions face complex care environments with growing attention to the number of preventable hospital deaths. Interprofessional communication and teamwork are key elements in reducing medical errors, and are core competencies of interprofessional collaborative practice. Interprofessional education occurs when students from different disciplines learn together, and/or when faculty from one discipline instruct students in another. Simulated healthcare scenarios provide high-impact learning environments for students with many benefits. Simulation-interprofessional education has been used very little between Clinical Laboratory Sciences and BSN nursing students. The faculty from a growing university sought to improve student-learning outcomes through team-teaching and student role playing in simulation and science laboratories. Two IPE projects were undertaken. Both projects demonstrated increases in the cognitive, psychomotor and affective domains of learning.
Journal article
Pride and prejudice and learning: An interprofessional experience with CLS and nursing students
Published 2017
Clinical Laboratory Science: Journal of the American Society for Medical Technology, 30, 233 - 239
Literature is scarce regarding medical laboratorians and their attitudes about interprofessional interactions with other healthcare providers. We investigated learning and attitudes in a joint project that brought Clinical Laboratory Sciences (CLS) students and Nursing students together. The nursing and CLS faculty created a simulated post-partum patient who developed deep vein thrombosis followed by pulmonary embolism. The patient was heterozygous for the Factor V Leiden mutation. The simulations occurred in two venues. The patient scenario occurred at the student Nursing Skills and Simulation Learning Center “SIM lab” at the bedside of the patient experiencing symptoms of deep vein thrombosis and pulmonary embolism, with the nursing students responding to the patient’s distress. CLS students collected blood from the patient during the crisis. The laboratory scenario occurred in the CLS teaching laboratory. CLS students performed real time PCR on the patient for the Factor V Leiden mutation, and instructed the nursing students how to interpret the results.
Learning gains were measured by survey after the 2 events. Retention of learning was measured 6 weeks after the second event took place. All students showed sustained learning about venous thromboembolism, its risk factors, and genetic mutations that predispose towards thrombophilia.
Students’ attitudes about interprofessional education and each other’s professions were surveyed before and after the experience. Students valued the experience and 87% of them responded that they are interested in pursuing more interprofessional education training opportunities.
Journal article
Is the Correlation of HbA1c to Average Glucose Predictable in Individuals With Sickle Cell Trait?
Published 2016
Journal of Diabetes Science and Technology, 10, 236 - 237
Teaching case study
Clinical Laboratory No. 1607: Hematology
Published 2016
Lab Q Clinical Laboratory
On completion of this exercise, the participant should be able to
- List 4 red blood cell inclusion bodies that may interfere with reticulocyte testing and the methods used to distinguish them;
- identify the distinguishing characteristics of Heinz bodies;
- describe the inheritance pattern of glucose-6-phosphate dehydrogenase (G6PD) deficiency and congenital Heinz body anemia;
- list 5 stressors known to cause hemolytic anemia in G6PD deficiency and congenital Heinz body anemia; and
- list 3 stains that can be used to evaluate Heinz bodies.
Journal article
One HbA1c Measurement Does Not Tell the Whole Story – 5 Case Studies
Published 10/01/2015
Clinical laboratory science, 28, 4, 232 - 237
Red blood cells (RBCs) are freely permeable to glucose and do not require insulin to facilitate its transport. [...]a percent of hemoglobin is glycated in all individuals, those without diabetes (HbA1c reference range <5.7%), and those with type 1 and type 2 diabetes. The HbA1c value has a high correlation with average blood glucose for the previous 2-3 months in individuals with either type 1 or type 2 diabetes.6.7 The look back time period is related to the average time that a hemoglobin molecule is available for glycation. The average life span of RBCs is 120 days.11 Conditions that alter the life span of the RBC, such as hemolytic anemia, iron deficiency anemia, and blood loss will negate this association.12 The student should be educated that the presence of hemoglobin variants, such as HbS, HbE and HbC, interferes with some HbA1c methods.10'13 As yet undetermined variability between individuals can also affect the rate of glycation.14 The ADA continues to recommend bi-annual measurement of HbA1c for individuals with diabetes who are in good glycemic control, and more frequent testing if therapy has changed.10 Blood glucose is influenced by diet, hydration, exercise, illness, and medication. Because the glucose was not steady state, the final HbAlc of 10.8% (with its eAG of 263 mg/dL) was misleading.