Nocturia: {Ans: Urination at night. Recumbency at night promotes fluid reabsorption and excretion; this occurs with heart failure in the person who is ambulatory during the day.}Stridor {Ans: o High pitched inspiratory crowing sound o Louder in neck than in chest wall o Originating in Larynx, trachea, or upper airway from swollen, inflamed tissues, or lodged foreign body o Croup, epiglottis in children, airway obstruction}Crepitus {Ans: o Coarse crackling sensation palpable over the skin surface o Occurs with subcutaneous emphysema when air escapes lung and enters subcutaneous tissue -> after open thoracic injury or surgery}Know when and how to use the diaphragm and when to use the bell of the stethoscope {Ans: Diaphragm is used when auscultating normal heart sounds Bell is used for detecting extra/abnormal heart sounds (bruits/murmurs)}Paroxysmal nocturnal dyspnea {Ans: Awakening from sleep with SOB and needing to be upright to achieve comfort}Understand what it means when you evaluate the Transverse and AP diameter. Know conditions in which the AP diameter may be different than 2:1. {Ans: AP diameter should be less than Transverse (2:1 RATIO), AP=T "barrel chest" seen in emphysema because of hyperinflation of the lungs.}