COMPARISON OF POTASSIUM ELECTROLYTE LEVELS IN BLOOD SPECI-MEN USING VACUUM TUBE CLOSE RED AND YELLOW AT TOTO KABILA HOSPITAL BONE BOLANGO DISTRICT. JHTS [Internet]. 2021 Dec. 28 [cited 2026 Apr. 3];2(4):64-73. Available from: https://journals.ubmg.ac.id/index.php/JHTS/article/view/902