Arab Board Surgery Part 1 study guide
Arab Board Surgery Part 1 · Work through your exam, one topic at a time.
The Arab Board of Health Specializations General Surgery Specialty Examination, Part 1 - widely called Arab Board Surgery Part 1 - is the primary (entry) stage of the Arab Board training pathway in general surgery. It is aimed at surgical residents who have completed, or are close to completing, the foundational years of accredited training and who need to demonstrate command of the basic sciences and principles that underpin safe operative practice before progressing to the final-stage examinations. The Arab Board Surgery Part 1 study guide has 9 sections and about 2,767 words.
01Anatomy and Embryology for the Surgical Candidate
The carotid sheath contains the common carotid medially, the internal jugular vein laterally and the vagus posteriorly in the groove between them. The recurrent laryngeal nerve ascends in the tracheo-oesophageal groove; the right hooks beneath the subclavian artery, the left beneath the aortic arch at the ligamentum arteriosum.
377 words, about 2 min02Applied Physiology for Surgical Patients
Cardiac output is stroke volume times heart rate; stroke volume depends on preload, afterload and contractility. The Frank–Starling relationship means a fluid-loaded ventricle ejects more, until the curve flattens and further filling only raises pressures.
304 words, about 2 min03Pathology and Pathophysiology
Reversible injury shows swelling and fatty change; irreversible injury shows membrane rupture, mitochondrial failure and nuclear dissolution. Necrosis patterns must be recognised: coagulative (ischaemia, except brain), liquefactive (brain, abscess), caseous (tuberculosis), fat (pancreatitis) and fibrinoid (vasculitis).
296 words, about 1 min04Microbiology, Infection Control and Sepsis
Sterilisation destroys all organisms including spores: steam autoclave at 121 °C for 15 minutes at 15 psi, or 134 °C for 3 minutes; dry heat at 160 °C for 2 hours; ethylene oxide for heat-sensitive equipment; gamma irradiation for single-use items. The Spaulding classification separates critical items (entering sterile tissue - must be sterilised), semicritical (mucous membrane - high-level disinfection) and non-critical (skin contact - low-level disinfection).
302 words, about 2 min05Pharmacology and Anaesthesia
Inhaled agents are compared by MAC, the concentration abolishing movement to a standard stimulus in half of patients; potency is inversely related to MAC. Induction agents differ in haemodynamics: propofol causes vasodilatation and hypotension, ketamine preserves blood pressure and is useful in hypovolaemia, etomidate is stable but suppresses adrenal steroidogenesis, and thiopentone is the classic choice when intracranial pressure must be controlled.
278 words, about 1 min06Biochemistry, Nutrition and the Metabolic Response to Injury
Cuthbertson described an early ebb phase (hypovolaemia, reduced metabolic rate, lasting hours) followed by a flow phase driven by catecholamines, cortisol, glucagon, growth hormone, antidiuretic hormone and aldosterone, with cytokines interleukin-1, interleukin-6 and TNF. The result is hyperglycaemia and insulin resistance, sodium and water retention, potassium and phosphate loss, negative nitrogen balance (up to 15–20 g daily after major burns) and a raised resting energy expenditure.
285 words, about 1 min07Principles of Surgery and Surgical Technique
Healing proceeds through haemostasis, inflammation (days 0–3, neutrophils then macrophages), proliferation (fibroblasts, angiogenesis, granulation tissue, type III collagen) and remodelling, in which type III collagen is replaced by type I and cross-linking raises tensile strength to about 80% of normal over months to a year. Healing is impaired by ischaemia, infection, diabetes, corticosteroids, smoking, radiotherapy, malnutrition, jaundice and uraemia.
308 words, about 2 min08Trauma and Critical Care
The ABCDE sequence treats what kills first. Airway with cervical spine protection; breathing, where tension pneumothorax, open pneumothorax, massive haemothorax and flail chest are identified and treated immediately (needle or finger thoracostomy then chest drain, three-sided dressing, tube and blood respectively); circulation with control of external haemorrhage, recognition of shock, FAST scan and pelvic binder; disability with Glasgow Coma Scale and pupils; exposure with prevention of hypothermia.
286 words, about 1 min09Professionalism, Ethics, Patient Safety and Research Methods
The four principles are autonomy, beneficence, non-maleficence and justice. Valid consent requires capacity, adequate information and voluntariness; in a life-threatening emergency, treatment proceeds under necessity.
331 words, about 2 min