Prevalence and documented causes of hyponatraemia among geriatric patients attending a primary care clinic
- Author:
Chai Li Tay
1
;
Phyo Kyaw Myint
2
,
3
,
4
;
Mohazmi Mohamed
5
;
Roy L Soiza
6
;
Maw Pin Tan
7
Author Information
- Publication Type:Journal Article
- Keywords: Hyponatraemia; aged; electrolytes; sodium
- From: The Medical Journal of Malaysia 2019;74(2):121-127
- CountryMalaysia
- Language:English
- Abstract: Introduction: Hyponatraemia is the commonest electrolyte abnormality and has major clinical implications. However, few studies of hyponatraemia in the primary care setting has been published to date. OBJECTIVES: To determine the prevalence, potential causes and management of hyponatraemia and to identify factors associated with severity of hyponatraemia among older persons in a primary care setting. Methods: Electronic records were searched to identify all cases aged ≥60 years with a serum sodium <135mmol/l, attending outpatient clinic in 2014. Patients’ medical records with the available blood test results of glucose, potassium, urea and creatinine were reviewed. Results: Of the 21,544 elderly, 5873 patients (27.3%) had electrolyte profile tests. 403 (6.9%) had hyponatraemia in at least one blood test. Medical records were available for 253, mean age 72.9±7.3 years, 178 (70.4%) had mild hyponatraemia, 75 (29.6%) had moderate to severe hyponatraemia. Potential causes were documented in 101 (40%). Patients with moderate to severe hyponatraemia were five times more likely to have a cause of hyponatraemia documented (p<0.01). Medications were the commonest documented cause of hyponatraemia (31.7%). Hydrochlorothiazide use was attributed in 25 (78.1%) of 32 with medication-associated hyponatraemia. Repeat renal profile (89%) was the commonest management of hypotonic hyponatraemia.
- Full text:6.2019.my1402.pdf
