Lewis Med-Surg Exam Questions (82 Terms) With Verified Definitions Updated 2024

Which physiologic change is associated with fever during inflammatory conditions? {Ans: Fever is mediated by a host macrophage product called endogenous pyrogen (EP) that stimulates the proliferation of T cells. Fever increases the action of neutrophils and promotes phagocytosis. Vasodilators increase blood flow rate. Fever increases destruction of microorganisms by enhancing the activity of interferon.}Which tracheostomy tube has openings on the surface of the cannula to permit airflow? {Ans: A fenestrated tube has openings on the surface of the outer cannula that permit air to flow over the vocal cords. Talking tracheostomy tubes allow speech by connecting a port to compressed air, which flows over the vocal cords. Tracheostomy tubes with foam-filled cuffs do not allow speech because the cuff self-inflates and is not deflated. A tracheostomy with a cuff and pilot balloon does not have any openings to allow airflow, but patients can speak when the cuff is deflated and the inner cannula removed.}Decreased tactile fremitus would indicate the patient may be experiencing which condition? {Ans: The nurse assesses fremitus in a patient by palpating the chest with his or her hands while asking the patient to say a phrase like "ninety-nine" in a deeper, louder