…renal failure, tamoxifen, lithium, thiazide diuretics, D vitamin and calcium overdose. ECG changes due to hypercalcemia Common ECG changes Shortened QT interval. Lengthened QRS duration…

…and repeated dose , titrated against clinical effect. 2. Parenteral thiamine early , preferably before or at the same time as carbohydrate administration. 3. Rapid identification of…

…potassium and magnesium before and daily during the build up, give thiamine before nutrition is started , and increase the energy intake slowly over the first…

…system blocker; A calcium channel blocker; and A thiazide or thiazide like diuretic, with all agents prescribed at maximum or maximally tolerated doses. The apparently…

…amfetamine, other sympathomimetics, herbal remedies and performance enhancing preparations. Monoamine oxidase inhibitors and recent intake of tyramine rich food or interacting drugs. Corticosteroids, calcineurin inhibitors…

…heart (inducing QRS or QT prolongation) or causing electrolyte abnormalities, such as thiazide and loop diuretics. Diagnostics Electrocardiogram (ECG) The ECG is the primary diagnostic…

…renal insufficiency, therapeutic interventions with tamoxifen or lithium, thiazide administration, and over supplementation of calcium and vitamin D. ECG in hypercalcemia Typical ECG changes: Shortened…