William Bennett Hesi Case Study Study Guide Questions And Correct Answers

Treatment for ARDS includes the ventilation strategy called permissive hypercapnia. This strategy requires: a high respiratory rate a low tidal volume a high FiO2 {Ans: a low tidal volume (rational: Permissive hypercapnia aims to limit pressure in the pulmonary system, and avoid volutrauma (alveolar overdistention and damage from high alveolar pressures). This is accomplished with a low tidal volume setting (6 mL/kg of predicted body weight) and a normal breathing rate. Alveolar ventilation is a result of breathing rate and tidal volume combined. Under most conditions, when tidal volume is reduced, breathing rate is increased to maintain adequate alveolar ventilation. With permissive hypercapnia, however, breathing rate is not increased, and hypercapnia is allowed. PaCO2 increase is maintained below 80-100 mm Hg and subsequent respiratory acidosis is maintained above 7.20. FiO2 (oxygen concentration) at or below 0.6 is desirable, to avoid toxicity. PaO2 of 60 mm Hg is desirable.)}Which of the following assessments are important with hypovolemic shock? Select all that apply Mental status Urine output Bowel sounds Respiratory rate Skin color Heart rate Blood pressure {Ans: Mental status Urine output Respiratory rate Skin color Heart rate Blood pressure}The use of positive end-expiratory pressure (PEEP) is indicated to increase: