Putri, Maulidya Pertiwi Assalindra Tiara (2026) Pengaruh Lama Waktu Penyimpanan pada Suhu Lemari Es terhadap Total Jumlah Bakteri pada Urine Ibu Hamil Trimester 3. Applied Bachelor thesis, Universitas Muhammadiyah Surabaya.
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Abstract
Latar belakang Infeksi Saluran Kemih (ISK) merupakan salah satu infeksi yang sering terjadi pada ibu hamil akibat perubahan fisiologis dan anatomi saluran kemih selama kehamilan, terutama pada trimester III. Pemeriksaan total jumlah bakteri pada urine digunakan untuk membantu diagnosis ISK. Kualitas hasil pemeriksaan sangat dipengaruhi oleh faktor pra-analitik, salah satunya adalah lama waktu penyimpanan sampel sebelum dilakukan pemeriksaan. Penundaan pemeriksaan dapat menyebabkan perubahan jumlah bakteri yang berdampak terhadap keakuratan hasil pemeriksaan. Tujuan penelitian ini untuk mengetahui pengaruh lama waktu penyimpanan sampel urine pada suhu lemari es terhadap total jumlah bakteri pada ibu hamil trimester III. Metode penelitian yang digunakan adalah penelitian analitik eksperimental dengan rancangan experimental. Sampel urine diberikan perlakuan variasi waktu penyimpanan yaitu 0 jam (segera), 1,5 jam, 3 jam, dan 4,5 jam pada suhu lemari es, kemudian dilakukan pemeriksaan total jumlah bakteri menggunakan metode kultur teknik Mayo (CFU/mL) dan dianalisis menggunakan uji statistik. Hasil penelitian menunjukkan adanya peningkatan bakteri pada setiap variasi waktu penyimpanan. Rata-rata total jumlah bakteri pada sampel urine ibu hamil trimester 3 pada 0 jam dengan rata-rata 13,47 x 10² CFU/ml, pada 1,5 jam dengan rata-rata 18,39 x 10² CFU/ml, pada 3 jam dengan rata-rata 25,78 x 10² CFU/ml, pada 4,5 jam dengan rata-rata 32,42 x 10² CFU/ml. Kesimpulan Lama waktu penyimpanan sampel urine pada suhu lemari es dapat memengaruhi total jumlah bakteri. Oleh karena itu, sampel urine sebaiknya segera diperiksa atau disimpan sesuai dengan prosedur yang benar untuk menjaga kualitas sampel serta memastikan keakuratan hasil pemeriksaan.
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Background: Urinary Tract Infection (UTI) is one of the most common infections affecting pregnant women due to physiological and anatomical changes in the urinary tract during pregnancy, particularly during the third trimester. The determination of total bacterial counts in urine is used to support the diagnosis of UTI. The quality of laboratory results is strongly influenced by pre-analytical factors, one of which is the duration of sample storage before analysis. Delayed examination may alter bacterial counts, thereby affecting the accuracy of laboratory results. Objective: This study aimed to determine the effect of refrigerated storage duration on total bacterial counts in urine samples from third-trimester pregnant women. Methods: This analytical experimental study employed an experimental design. Urine samples were stored under refrigerated conditions for four different durations: 0 hours (immediate examination), 1.5 hours, 3 hours, and 4.5 hours. Total bacterial counts were determined using the Mayo culture technique and expressed as colony-forming units per milliliter (CFU/mL). The data were subsequently analyzed using statistical tests. Results: The results showed an increase in bacterial counts with each storage duration. The mean total bacterial counts in urine samples from third-trimester pregnant women were 13.47 × 10² CFU/mL at 0 hours, 18.39 × 10² CFU/mL after 1.5 hours, 25.78 × 10² CFU/mL after 3 hours, and 32.42 × 10² CFU/mL after 4.5 hours. Conclusion: The duration of refrigerated storage affects total bacterial counts. Therefore, urine samples should be analyzed immediately or stored in accordance with appropriate procedures to preserve sample quality and ensure the accuracy of laboratory results.
| Item Type: | Thesis (Applied Bachelor) |
|---|---|
| Uncontrolled Keywords: | ibu hamil trimester III, urine, lama waktu penyimpanan, suhu lemari es, total jumlah bakteri, CFU/mL, third-trimester pregnant women; urine; storage duration; refrigerated storage; total bacterial count; CFU/mL |
| Subjects: | Q Science > QR Microbiology R Medicine > RA Public aspects of medicine R Medicine > RB Pathology R Medicine > RG Gynecology and obstetrics |
| Divisions: | 04. Fakultas Ilmu Kesehatan > D4 Ahli Teknologi Laboratorium Medis |
| Depositing User: | Maulidya Pertiwi Assalindra Tiara Putri |
| Date Deposited: | 09 Sep 2026 01:46 |
| Last Modified: | 09 Sep 2026 01:46 |
| URI: | https://repository.um-surabaya.ac.id/id/eprint/13946 |
