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All Journal Jurnal Sains dan Teknologi Laboratorium Medik OMEGA: Jurnal Keilmuan Pendidikan Matematika
Putri, Salsa Amelia
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Education Health Professions Immunology & microbiology Mathematics Public Health Other

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Analisis Hasil Pemeriksaan Kreatinin pada Sampel dengan Penambahan Hemolisat Berbagai Level Putri, Salsa Amelia
Jurnal Sains dan Teknologi Laboratorium Medik Vol 9 No 2 (2023): November 2023
Publisher : Akademi Kesehatan John Paul II Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52071/jstlm.v9i2.158

Abstract

Examination of creatinine levels in the blood is one of the parameters used to assess kidney function because the concentration in plasma and its excretion in the urine in 24 hours is relatively constant. Hemolyzed plasma samples can affect creatinine levels with the examination results tending to decrease when compared to normal plasma examination results. Objective: To assess the percentage decrease or increase in mean, precision, accuracy, and clinical differences in creatinine assay by Jaffe Reaction Method using plasma samples with various levels of hemolysate added against samples without hemolysate added. Methods: Pure experiment (true experimental) with research samples in the form of venous blood of students and female students of the D-3 Medical Laboratory Technology Study Program of the East Kalimantan Ministry of Health Polytechnic as many as 40 samples. This research was conducted at the Hematology Laboratory and Clinical Chemistry Laboratory of the Poltekkes Kemenkes Kalimantan Timur. Data were obtained through measurement of the object of research after being treated in the form of the addition of various levels of hemolysate. Data analysis using Microsoft Excel application. Results: The mean decrease in creatinine test results of insignificant hemolysis and mild hemolysis samples against nonhemolyzed plasma samples was 6% and 8%. Accuracy value <5% in creatinine examination of insignificant hemolysis and mild hemolysis samples by -5% and -6%. The precision value >6% in the creatinine examination of insignificant hemolysis and mild hemolysis samples was 13.6% and 15.6%. Total error >15% TEa in the examination of insignificant hemolysis and mild hemolysis hemolysis samples was 27.2% and 31.2%. Conclusion: all the results of data analysis are outside the normal range and have a false decrease due to the addition of various levels of hemolysate, so the variation of insignificant hemolysis and mild hemolysis samples cannot be accepted or used in creatinine examination parameters.
Development of Canva-Based Digital Media for Teaching Mathematics: Counting Numbers Up to 10,000 in Grade IV Elementary School Salsabila, Annisa; Wardah, Annisa Siti; Putri, Salsa Amelia; Mahharani, Tita; Nurussama, Alfiana; Rahayu, Teten Ginanjar
OMEGA: Jurnal Keilmuan Pendidikan Matematika Vol. 5 No. 1 (2026): OMEGA: Jurnal Keilmuan Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Alwashliyah Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/jkpm.v5i1.1159

Abstract

This study aims to: a) Test the validity of Canva-based interactive mathematics learning media on whole number materials in elementary school ; and b) Test the practicality level of the learning media according to student responses. This study is a type of Research and Development (R&D) using the ADDIE Development model consisting of five stages: Analysis, Design, Development, Implementation, and Evaluation. The Research subjects were fourth-grade elementary school students. The instruments used included validation sheets and practicality questionnaires. The validity test results from material and media experts obtained an average percentage of 87.58%, falling into the "Very Valid" category. The practicality test results through student response questionnaires obtained an average percentage of 95.04%, categorized as "Very Practical". Based on these results, the "Walacah" media is effective as a cognitive mediation tool to improve students' understanding of whole numbers up to 10,000.
Co-Authors Mahharani, Tita Nurussama, Alfiana Rahayu, Teten Ginanjar SALSABILA, ANNISA Wardah, Annisa Siti