Practical, handy guide to arterial blood gases and lung function tests, designed for medical students and foundation doctors on the go and highly affordable for those rotating through modular courses or working on attachment. Highly affordable price and convenient pocket size format fits in back pocket! All hospital doctors deal with ABGs (arterial blood gases) but knowledge is commonly assumed and students lack confidence interpreting them. Logical, sequential content: relevant basic science, understanding normal results and the building blocks of abnormal results, then clinical disorders. Clinical disorders illustrated by representative test results and brief accompanying text that clearly identifies the defining feature of the result (in other words, what is it that makes this diabetic ketoacidosis?).