Karen Arca-Contreras

Prof. Dr. Karen Arca-Contreras


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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Verified
Journal Article
Open access
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ANAndrew W. Ngai
Andrew W. Ngai
ABAqsa Baig
Aqsa Baig
MZMuhammad Zia
Muhammad Zia
Karen Arca-ContrerasKaren Arca-Contreras
Karen Arca-Contreras
NHNadeem Ul Haque
Nadeem Ul Haque
SSShiryn Devi Sukhram
Shiryn Devi Sukhram
Diabetic nephropathy affects approximately 30–40% of individuals with diabetes mellitus (DM) and is a major contributor to end-stage renal disease (ESRD). While angiotensin II receptor blockers (ARBs) have long served as a standard treatment, sodium-glucose cotransporter-2 inhibitors (SGLT2i) have recently gained attention for their renal and cardiovascular benefits. However, comparative real-world data on their long-term renal effectiveness remain limited. We conducted a retrospective, longitudinal study over a 2-year period to compare the impact of ARB monotherapy versus SGLT2i and angiotensin-converting enzyme inhibitor (ACEi) combination therapy on the progression of chronic kidney disease (CKD) in patients with DM. A total of 126 patients were included and grouped based on treatment regimen. Renal biomarkers were analyzed using t-tests and ANOVA (p < 0.01). Albuminuria was qualitatively classified via urinalysis as negative, level 1 (+1), level 2 (+2), or level 3 (+3). The ARB group demonstrated higher estimated glomerular filtration rate (eGFR) and lower serum creatinine (sCr) levels than the combination therapy group, with glycated hemoglobin (HbA1c), potassium (K+), and blood pressure remaining within normal limits in both cohorts. Albuminuria remained stable over time, with 60.8% of ARB users and 73.1% of combination therapy users exhibiting persistently or on-average negative results. Despite the expected additive benefits of SGLT2i/ACEi therapy, ARB monotherapy was associated with slightly more favorable renal function markers and a lower incidence of severe albuminuria. These findings suggest a need for further controlled studies to clarify the comparative long-term renal effects of these treatment regimens.

19 January 2021 in Journal of Doctoral Nursing Practice
Verified
Journal Article
Closed access
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Karen Arca-ContrerasKaren Arca-Contreras
Karen Arca-Contreras
Background: Deliberate inclusion of clinical decision-making nursing skills in the didactic setting will assist students in potentially making better patient care decisions. This can be optimized through use of the flipped learning andragogy. Flipped learning promotes an interactive classroom environment. It fosters teamwork and collaboration. Direct content instruction is the responsibility of students.Objective: This cohort pilot study investigated how the flipped and nonflipped approach to teaching impacted clinical decision-making and student participation.Methods: The Clinical Decision-Making in Nursing Scale (CDMNS) was administered to the students in the flipped classroom and the nonflipped classroom on week 1 and week 6. A student participation checklist was used to observe class activities at three separate intervals (baseline, mid-semester, and end-semester). A repeated measures analysis of covariance was conducted with Instruction Group as the between subjects factor (Flipped and Nonflipped) and Time (preinstruction and postinstruction) as the within subjects factor, and covarying age. The Time by the Instruction group was significant. The Flipped group showed an increase in Clinical decision-making scores (p < .001) after instruction while the Nonflipped group did not (p = .40).Results: The Flipped group (n = 24) showed an increase in Clinical decision-making scores (p < .001) after instruction while the Nonflipped group (n = 23) did not (p = .40). The Flipped classroom showed 100% participation at baseline, mid-semester, and end of semester. The Nonflipped classroom showed overall lower levels of participation, with 42%, 33%, and 39% at each point respectively.Conclusion/Implications for Nursing: Students who were taught using the flipped instruction were able to apply what they learned in relevant case studies, virtual simulations, and practice National Council Licensure Examination RN (NCLEX-RN) type questions. Through teamwork and collaboration, students had time to practice clinical decision-making skills. This was evident in the increased CDMNS scores and increased levels of participation over time in the flipped group when compared to the nonflipped group.