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Hyperglycaemic presentations in type 2 diabetes
Clare Willix1, Emma Griffiths2, Sally Singleton3
1MBBS, FRACGP, FACRRM, Clinical Senior Lecturer, Rural Clinical School of Western Australia, Bunbury, WA. clare.willix@rcswa.edu.au
Background:
Hyperosmolar hyperglycaemic state (HHS) is a syndrome that occurs in patients with type 2 diabetes mellitus (T2DM) and is comparable to diabetic ketoacidosis (DKA) seen in patients with type 1 diabetes. For a general practitioner working in a rural emergency department, recognition of HHS in a patient presenting with the triad of severe dehydration, hyperglycaemia and hyperosmolality is important to guide management and plan for disposition.
Objectives:
This article reviews the hyperglycaemic states that can occur in patients with T2DM. The reasons for the biochemical derangements in both HHS and DKA are outlined, with a focus on the recognition and management of HHS.
Discussion:
Knowledge of the pathophysiology that influences HHS helps understand of its clinical presentation and treatment. HHS has a high mortality rate (5–20%), and having access to clinical guidelines from a referring hospital is useful to guide early management strategies.
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