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Category Investigations
CCC Critical Care compendium 340

CT Head Interpretation

The CT head scan is a computer-generated series of images from multiple X-rays taken at different levels. Fine X-ray beams passed through the subject are absorbed to different degrees by different tissues and the transmitted radiation is measured by a scanning device.
CCC Critical Care compendium 340

Peritoneal Fluid Analysis

The peritoneum is a tough semi-permeable membrane lining abdominal and visceral cavities. it encloses, supports and lubricates organs within the cavity. Paracentesis is effectively the analysis of 'Ascites' - the abnormal accumulation of fluid within the abdomen.
CCC Critical Care Compendium 680

Liver Function Tests

Liver Function Test Analysis including Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT), Alkaline Phosphatase (ALP) Lactate Dehydrogenase (LDH), Gamma Glutamyl Transferase (GGT)
CCC Critical Care compendium 340

AXR Interpretation

Indications for plain AXR differ depending on the availability of CT or USS, which give considerably more information. Abdominal X-rays are only useful for certain defined pathology such as abnormal ‘gases, masses, bones and stones’.
CCC Critical Care Compendium 680

SIADH DDx

SIADH = Syndrome of inappropriate antidiuretic hormone secretion. Important cause of HYPOnatraemia
CCC Critical Care Compendium 680

Hyperkalaemia DDx

Overview Causes Increased potassium intake (rare) Increased release from tissues Decreased renal excretion Transcellular shift Factitious (Pseudo-hyperkalaemia) Drugs causing hyperkalaemia References and Links LITFL

CCC Critical Care Compendium 680

Urate (Uric Acid)

Uric acid is the major end metabolite of purine. Purine found in nucleic acid and exogenous sources; Commonly used as marker for gout and pre-eclampsia; Levels do not usually indicate severity of disease
CCC Critical Care compendium 340

Urinalysis Overview

References and Links Unusual urine – Clinical Cases Urine Color Urine Transparency (turbidity) Dipstick urinalysis CCC – Urinalysis CCC – Urine electrolytes – Urinary anion gap Urinalysis Overview Table Laboratory Urinalysis

CCC Critical Care Compendium 680

Urine Odour

Consumption of certain foods and medications may be causes for changes in the odour of urine as well as pathological conditions