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Edexcel Level 3 BTEC Nationals in Health and Social Care

Edexcel Level 3 BTEC Nationals in Health and Social Care

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UNIT 13: PHYSIOLOGY OF FLUID BALANCE4 Underst<strong>and</strong> homeostatic processes <strong>in</strong> relation to water balanceWater <strong>in</strong>take: <strong>in</strong>gested liquids <strong>and</strong> foods; from metabolic processes, egrespiration; effect of water ga<strong>in</strong> on cellsWater output/loss: through sk<strong>in</strong>, lungs, gastro<strong>in</strong>test<strong>in</strong>al tract, kidneys; effect ofwater loss on cellsRenal system: gross anatomy; associated blood supply; physiological overview:ur<strong>in</strong>e production, composition <strong>and</strong> storage, micturitionKidneys: gross anatomy; structure <strong>and</strong> function of nephrons/kidney tubules;ultrafiltration, <strong>and</strong> selective reabsorption, counter-current mechanism, pr<strong>in</strong>ciplesof osmoregulation <strong>and</strong> role of hypothalamus/relevant hormones, eg anti-diuretichormoneDysfunctions <strong>in</strong> relation to water balance: oedema, kidney failure; renal dialysis,transplantationBN018467 – Specification – <strong>Edexcel</strong> <strong>Level</strong> 3 <strong>BTEC</strong> <strong>Nationals</strong> <strong>in</strong> <strong>Health</strong> <strong>and</strong> <strong>Social</strong> <strong>Care</strong>– Issue 1 – February 2007 © <strong>Edexcel</strong> Limited 2007183

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