Nur 425 Exam 3 - Questions & Detailed Solutions

Systolic hypertension with widening pulse pressure, BRADYCARDIA, irregular respiratory pattern. *Late sign* of IICP. {Ans: Cushing's Triad}Completely irregular with some breaths deep and some shallow. Random, irregular pauses, slow rate. Drunk breathing. {Ans: Ataxic breathing}When the ventilation is not matching perfusion, or there is adequate ventilation but no perfusion. Umbrella term for hypoventilation, intrapulmonary shunting, and diffusion limitation. {Ans: V/Q Mismatch}What are we worried about with pressure modes? {Ans: They don't assist with RR, so can result in hypoventilation}A nurse is obtaining arterial blood gases for a client who has vomited for 24 hours. The nurse should expect which of the following acid-base imbalances? a. Respiratory acidosis b. Respiratory alkalosis c. Metabolic acidosis d. Metabolic alkalosis {Ans: D}List the compensatory mechanisms (3) for acid-base balance. {Ans: 1. Buffer System -Very quick acting, but doesn't last long -Made up of proteins, ions, hydrogen, etc. -Strong acids are made to weaker acids, or vice versa 2. Respiratory System -Kicks in after a few minutes, lasts up to a day -Respiratory rate is altered to either increase O2 intake or increase CO2 retention. 3. Renal System -Kicks in after about a day, more sustainable than the others