# 85 INTENSIVE CARE Intensive Care=== Critical care is the branch of medicine concerned with supporting failing organ systems while the underlying disease process is treated. For MRCS Part A, you are not expected to run an ICU — but you ARE expected to understand the levels of care, the principles of

Detailed notes Burns are among the most lethal mechanisms of trauma, killing not by the wound itself but by the systemic chaos that follows — massive fluid shifts, immune collapse, hypermetabolism and infection. For MRCS Part A you are expected to know the pathophysiology, how to estimate burn size and depth,

# 83 AMYLOID 👩‍⚕️ One-line summary: Amyloid is a family of misfolded proteins that share a common β-pleated sheet structure, deposit extracellularly, resist degradation and damage organs by infiltration. Diagnosis is histological — Congo red stain + apple-green birefringence under polarised light. The protein subtype determines the clinical syndrome: AL (light

# 81 GRAFTS A graft is living tissue moved from one site to another and left to acquire a new blood supply from the recipient bed. A flap differs in that it carries its own vascular pedicle. MRCS Part A focuses on the vocabulary, the biology of graft "take"

# 82 BIOPSY Biopsy is the removal of tissue from a living patient to establish a diagnosis. In MRCS Part A, the examiners do not ask you to define it — they ask you to pick the right biopsy for the right lesion. Every wrong choice on the exam (and in clinical

# 80 HISTOPATHOLOGY Histopathology is the diagnostic backbone of surgical oncology. Every specimen you send from theatre passes through the same pipeline: fixation, processing, sectioning, staining, microscopy and, increasingly, immunohistochemistry. MRCS Part A questions rarely ask you to be a pathologist — they ask whether you understand the pipeline well enough to

# 77 HAEMATOLOGY Haematology in MRCS Part A is mostly pattern recognition. The exam will hand you a blood film, an MCV, a paraprotein band, a chromosomal translocation or a "punched-out lytic lesion" and expect you to land on the diagnosis in one step. This lesson is organised

# 78 BLOOD PRODUCTS Transfusion questions in MRCS Part A cluster around three themes: blood group compatibility, which component to give for which problem, and recognising the transfusion reactions. 👩‍⚕️ Three anchors: FFP lasts 24 h once thawed (1 year frozen); UK transfusion recipients can NEVER donate (vCJD); citrate in stored blood

# 72: MANAGEMENT OF FRACTURES Fracture management is one of the highest-yield topics in MRCS Part A. The College loves it because the principles are universal — every fracture, from a toddler's tibia to a polytrauma femur, is approached using the same framework. Master that framework once and you