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The American Diabetes Association defines the following criteria for the diagnosis of diabetes: a HbA1c of 6.5%, an 8-hour fasting blood glucose of 7.0 mmol/L (126 mg/dL), a 2-hour oral glucose tolerance test (OGTT) of ≥ 11.1 mmol/L (200 mg/dL), or in patients exhibiting hyperglycemic symptoms, a random plasma glucose of ≥ 11.1 mmol/L (200 mg/dL).
[10] [14] Increased susceptibility to infections, hyperglycemia (in patients already prone to stress hyperglycemia), gastrointestinal bleeding, electrolyte disturbances and steroid-induced myopathy (in patients already prone to critical illness polyneuropathy) are possible harmful effects. [6]
Stress hyperglycemia is especially common in patients with hypertonic dehydration and those with elevated catecholamine levels (e.g., after emergency department treatment of acute asthma with epinephrine). Steroid diabetes is a specific and prolonged form of stress hyperglycemia. [citation needed]
Steroid hormones are synthesized from cholesterol within the adrenal cortex. Aldosterone and corticosterone share the first part of their biosynthetic pathway. The last part is either mediated by the aldosterone synthase (for aldosterone) or by the 11β-hydroxylase (for corticosterone ).
Hyperglycemia or hyperglycaemia is a condition where unusually high amount of glucose is present in blood. It is defined as blood glucose level exceeding 6.9 mmol/L (125 mg/dL ) after fasting for 8 hours and 10 mmol/L (180 mg/dL) 2 hours after eating.
Hyperglycemia due to increased gluconeogenesis, insulin resistance, and impaired glucose tolerance ("steroid diabetes"); caution in those with diabetes mellitus; Increased skin fragility, easy bruising; Negative calcium balance due to reduced intestinal calcium absorption [49]
Endocrine: By increasing the production of glucose from amino-acid breakdown and opposing the action of insulin, corticosteroids can cause hyperglycemia, [26] insulin resistance and diabetes mellitus. [27] Skeletal: Steroid-induced osteoporosis may be a side-effect of long-term corticosteroid use.
Dexamethasone is a fluorinated glucocorticoid medication [10] used to treat rheumatic problems, a number of skin diseases, severe allergies, asthma, chronic obstructive pulmonary disease (COPD), croup, brain swelling, eye pain following eye surgery, superior vena cava syndrome (a complication of some forms of cancer), [11] and along with antibiotics in tuberculosis. [10]