Assessing organ function

Cardiac

• Mechanical - Echocardiogram, ventriculography, cardiac output monitoring (Swan-Ganz/Pulmonary artery catheter)
• Electrical - ECG monitoring, 12 lead ECG, ellectrophysiological study

Vascular

• Doppler ultrasound, arteriography

Respiratory

• Gas exchange - Oxygen saturation, Arterial blood gas
• Respiratory mechanics - Spirometry, Pressure-Volume measurment
• Diffusion capacity - DLCO

GIT

• Motility - oesophageal motility, sphincter tone measurements
• Digestion / Absorption - digestive enzyme assays, recovered dietary substrates

Hepato-biliary

• General - bilirubin
• Hepatocellular - AST, ALT
• Cholestatic - ALP, GGT
• Synthetic - albumin, globulin, INR, clotting studies
• Metabolic - Ammonia
• Excretory - ERCP, nuclear scan

Haematology / Immunology

• Formed elements - FBC, bone marrow biopsy
• Clotting function - INR, APTT
• Immunological function - WCC, IgG, complement, T & B Cells

Renal

• Glomerulo-tubular function - Urine output, creatinine
• Synthetic - Vitamin D, Haemoglobin (i.e. erythropoetin)
• Endocrine - hypertension

Urinary

• Renal excretion - intravenous pyelogram, CT (with IV contrast)
• Bladder empyting - bladder ultrasound, urodynamic studies

Endocrine

• Hormonal assays

PNS

• Nerve conduction studies
• Electromyography
• Sensory evoked potential

CNS

• EEG
• Evoked potentials
• PET scanning