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ANZCA Primary Definitions 2025 with Correct Answers Term - ....ANSWER☑️☑️...-Definition A-a Gradient - ....ANSWER☑️☑️...-The numerical difference between ideal alveolar PAO2 and PaO2. An index of the amount of V/Q inequality and shunting which is present. Absolute Humidity - ....ANSWER☑️☑️...-Mass of H2O vapour in a given volume of air mg/L Absorption - ....ANSWER☑️☑️...-The rate at which a drug leaves its site of administration and the extent to which this occurs. Acid - ....ANSWER☑️☑️...-A proton (or H+ ion) donor Acidaemia - ....ANSWER☑️☑️...-Arterial blood pH < 7.35 or [H+] > 44 nmol/L Acidosis - ....ANSWER☑️☑️...-An abnormal process or condition which tends to lower arterial pH if there are inadequate secondary changes in response to the primary disease process. Two types: Respiratory and metabolic. Acquired Immunity - ....ANSWER☑️☑️...-"The delayed onset but specific and memory immunity after the first line innate immunity is breached. First exposure allows identification and learning, and the second exposure initiates quick mobilisation of lymphocytes. Major components: Humoral Immunity (B lymphocytes producing specific antibodies), and Cellular Immunity (T lymphocytes)" FOR STUDY PURPOSES ONLY ©️ 2025 ALL RIGHTS RESERVED 1