Question

Critical Thinking Questions Scenario: Mrs. Plaskowitz is a 60-year-old woman with COPD who is admitted lance wearing a nonrebreathing mask at 10 Lpm. Mrs. Plaskowitz, who was awake and alert when the am her home, is now extremely lethargic and somnolent. The ED physician orders you to change the oxygen to the emergency department (ED) via ambu- bulance arrived at nasal cannula. 1. Briefly explain the cause of the "patient's lethargy 2. If the "patient" were to remain on the nonrebreathing mask for at least 24 hours, what complications or hazards could result from (a) the delivery method, and (b) the resulting oxygen concentration? What liter flow would you recommend to the physician for the nasal cannula? 3. 4. The pulmonary physician, who has been called in on this case, requests that you change the delivery device to a Venturi mask at a comparable Fro A. What Fioj should be used? B. The "patient" is noted to have a minute ventilation of 15 1pm. What is the minimum liter flow, at this Fio required to meet the "patient's" inspiratory flow demand? Shosw your work S. Why is a minimum flow rate of S Lpm recommended for oxygen delivery by mask? Why will an air entrainment mask never deliver 100% oxygen?

help with questions please

Answer 1

1. The patient feels lethargic because COPD reduces airflow into your lungs, making breathing difficult and labored. It also reduces the oxygen supply your whole body receives. Without enough oxygen, your body will feel tired and exhausted. 2. A) Nonrebreathing mask should be used only for short period, prolonged use causes high oxygen concentrations which is contraindicated in this patient (For COPD patients 02 saturation should be maintained at 90-92%.). B) Excess oxygen administration or high oxygen concentration leads to pulmonary and ocular toxicity can also cause hypercarbia (excess co2) which further leads to alterations in mental state.