21 Pengaruh Konsumsi Air Putih terhadap Gambaran Kalsium Oksalat dalam Urin Mahasiswa Akademi Analis Kesehatan Pekalongan Tahun 2021 Fitrianingsih, Abdul Ghofur, Dwi Ardinianti Email: omopung@gmail.com Akademi Analis Kesehatan Pekalongan, Indonesia Jl.Ade Irma Suryani No.6 Tirto Kabupaten Pekalongan Telp/Fax (0285) 4416833 Abstrak Kalsium oksalat termasuk sedimen urin sebagai kombinasi antara kalsium dan oksalat, kalsium dapat diendapkan oleh oksalat membentuk kalsium oksalat yang tidak dapat diserap tubuh, kemudian menjadi endapan garam yang tidak larut dan menjadi penyakit batu ginjal. Air putih mencegah pembentukan kristal kalsium oksalat. sehingga dianjurkan mengonsumsi setidaknya 2 liter sehari agar urin yang dikeluarkan akan bertambah dan mengurangi konsentrasi garam serta mineral dalam tubuh. Penelitian ini untuk mengetahui pengaruh konsumsi air putih terhadap gambaran kristal oksalat dalam urin mahasiwa AAK Pekalongan sebelum dan sesudah mengonsumsi air putih sebanyak 2 liter perhari. Jenis penelitian observasional analitik dengan uji statistik uji beda T paired, jumlah sampel 22 sampel dan pemeriksaan secara mikroskopis. Hasil penelitian gambaran kalsium oksalat dalam urin sebelum mengonsumsi air putih sebanyak 2 liter didapatkan hasil 6 sampel (27,28%) negatif, 5 sampel (22,72%) positif 1, 1 sampel (4,55%) positif 2 dan 10 sampel (45,45%) positif 3, sedangkan pada sampel sesudah mengonsumsi air putih sebanyak 2 liter didapatkan 20 sampel (90,90%) negatif, 1 sampel (4,55%) positif 1,1 sampel (4,55%) positif 2 dan 0 sampel (0%) positif 3. Hasil statistik menyatakan terdapat pengaruh sebelum dan sesudah konsumsi air putih terhadap gambaran kalsium oksalat dalam urin mahasiswa AAK Pekalongan. Kata kunci: kalsium oksalat; air putih; urin. Abstract Calcium oxalate includes urinary sediment as a combination of calcium and oxalate, calcium can be deposited by oxalate forming calcium oxalate that the body cannot absorb, then into insoluble salt deposits and become kidney stone disease. Water prevents the formation of calcium oxalate crystals. So it is recommended to consume at least 2 liters a day so that the urine released will increase and reduce the concentration of salt and minerals in the body. This study to find out the effect of water consumption on the picture of oxalate crystals in the urine of AAK Pekalongan students before and after consuming water as much as 2 liters per day. Types of analytical observational studies with different T paired test statistical tests, sample numbers of 22 samples and microscopic examination. The results of the study of calcium oxalate in urine before consuming water as much as 2 liters obtained the results of 6 samples (27.28%) negative, 5 samples (22.72%) positive 1.1 sample (4.55%) positive 2 and 10 samples (45.45%) positive 3, while in the sample after consuming water as much as 2 liters obtained 20 samples (90.90%) negative, 1 sample (4.55%) positive 1.1 samples (4.55%) positive 2 and 0 samples (0%) positive 3. Statistical results state that there is an influence before and after water consumption on the picture of calcium oxalate in the urine of AAK Pekalongan students. Keywords: calcium oxalate; water; urine.