Which of the following values are indicative of acute respiratory failure and the need for ventilatory support?
1)Maximum inspiratory pressure (MIP)= −38 cm H₂O.
2)Vital capacity (VC)= 650 mL for a 70 kg male.
3)Alveolar-to-arterial partial pressure of oxygen [P₍ᴀ₋ₐ₎O₂] = 150 on 100% oxygen.
4)Maximum expiratory pressure (MEP)= 25 cm H₂O.
A) 1 and 2 only
B) 2 and 4 only
C) 1 and 3 only
D) 3 and 4 only

Question

Quizplus · Accepted Answer

The critical values for the parameters listed are: maximum inspiratory pressure (MIP)-20 to 0; vital capacity (VC)<10-15 mL/kg ideal body weight (IBW); alveolar to arterial partial pressure [P₍ᴀ₋ₐ₎O₂] >450 on O₂,and maximum expiratory pressure (MEP)<40 cm H₂O.

Which of the Following Values Are Indicative of Acute Respiratory