Abnormal Investigations

Electrolytes

Hypocalcaemia

Acute hypocalcaemia that is severe (<1.9 mmol/L) or symptomatic can be life-threatening and necessitates urgent treatment. It is often initially

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Gastroenterology

Refeeding Syndrome

Defined as a collection of electrolyte abnormalities associated with a massive intracellular shift of electrolytes. Associated with aggressive nutritional rehabilitation

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Electrolytes

Hypercalcaemia

Serum calcium concentration is tightly regulated between 2.1-2.6mmol/L. Severe hypercalcaemia is a life-threatening electrolyte emergency requiring prompt recognition and urgent

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Haematuria

Haematuria

You will regularly see patients with blood in their urine, most often picked up incidentally on a urine drip. Your

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Electrolytes

Hyperkalaemia

Hyperkalaemia can cause life-threatening emergencies particularly cardiac arrhythmias. A widely used definition is extracellular [K+] ion concentration ≥ 5.5 mmol/L.

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Haematology

Anaemia

Perhaps the most common blood test you will review daily will be the FBC (full blood count). You will commonly

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Electrolytes

Hyponatraemia

Hyponatraemia (serum Sodium <135 mmol/L) is one of the most common electrolyte abnormalities you will see and so a systematic

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