The main purpose of this Manual is to provide useful guidelines for the selection of pathology tests and to facilitate interpretation of results.
Contains a comprehensive listing of all genes from the Human Gene Nomenclature Committee (HGNC) database alongside laboratories and tests available in the country.
A manual for the process of macroscopic dissection in Anatomical Pathology laboratories.
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Keywords: Urine sodium, Urine Na
Random or 24 h urine collection.
ISE, flame emission spectrophotometry.
In Hyponatraemia or hypovolaemic shock without acute tubular necrosis, urine sodium should be < 20 mmol/L and fractional excretion of sodium should be < 1.5%.
If extracellular fluid volume and plasma sodium are normal, urine sodium should equal intake minus non-renal losses, typically 75-300 mmol/24 h.
Investigation of Hyponatraemia.
Assessment of renal function in hypovolaemic shock.
Investigation of compliance with a low sodium diet.
Investigation of predisposing factors for hypercalciuria in patients with renal calculi.
Urinary sodium excretion exceeds 20 mmol/L in Hyponatraemia due to SIADH, diuretic therapy, or Addison’s disease.
In a patient with shock and oliguria a urinary sodium > 20 mmol/L or a fractional excretion of sodium > 1.5% suggests acute tubular necrosis.
High urine sodium increases urine calcium and predisposes to calculi containing calcium.
Halperin ML and Bohn D. Crit Care Clin. 2002; 18(2): 249-272.
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The RCPA is the leading organisation representing Pathologists and Senior Scientists in Australasia.
Its mission is to train and support pathologists and senior scientists and to improve the use of pathology testing to achieve better healthcare.
The annual scientific meeting for the RCPA which covers the scientific disciplines of Anatomical, Chemical, Forensic, Genetic, General, Haematology, Immunopathology and Microbiology.
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