SAAD BIN NAFIS; NAQVI, Iqil; SHAFIQ, Faraz; NAZIR, Mohsin. PRE-OPERATIVE STATUS OF SERUM SODIUM, POTASSIUM, BLOOD UREA NITROGEN AND CREATININE IN HYPERTENSIVE PATIENTS SCHEDULED FOR ELECTIVE NON-CARDIAC SURGERY. Khyber Journal of Medical Sciences, [S. l.], v. 19, n. 1, 2026. DOI: 10.70520/kjms.v19i1.844. Disponível em: https://kjms.com.pk/index.php/kjms/article/view/844. Acesso em: 12 apr. 2026.