A Simple Respiratory Guide for Respiratory Therapy in the Trauma Patient
Technical rept. Apr-Oct 1973
EDGEWOOD ARSENAL ABERDEEN PROVING GROUND MD
Pagination or Media Count:
The respiratory index R.I., PAaDO-2PaO2 was investigated in 177 intubated patients. An R.I. of 0.1-0.37 is normal. An R.I. of two or greater was an indication for intubation, and over six was associated with a 12 probability of survival. The R.I. reflects the presence of pulmonary shunting in a variety of circumstances including atelectasis, pulmonary contusion or pulmonary emboli. A nomogram which allows one to follow the course of the patient with respiratory problems is described. Movement along the same isobars or between isobars can be followed by plotting the PaO2 against the FIO2. Thus, the rationale and effect of respiratory therapeutic manipulations may be graphically recorded.
- Medicine and Medical Research