Respiratory Options
Describes the actions and terms used in the Respiratory function tool.
| Action | Description |
|---|---|
| Data | Displays the patient's record as a list of data. |
| Graph | Displays the patient's record as a graph. |
| Clear | Clears any data you have entered in the
Current
Measurements section on the
Manual tab. Note: This action is
only available when adding results
manually. |
| Record | Initiates recording from a connected
respiratory device. Note: This action is
only available when the
Device button is
enabled. |
| Asthma Plan | Click to record an Asthma Action Plan. |
| Prints the patient's respiratory data. If you have filtered the data, this will be reflected in the printout. | |
| Reference | Displays reference information for predicted respiratory values. |
| Edit | This action is inactive for Respiratory. |
| View | Views a saved report on the
Device tab. Note: This
action is only available if you are in
Device mode and
have a saved report from the connected
device. ![]() |
| Save | Saves data to the patient's record. Note: This action is
only available when adding results
manually. |
| Delete | Deletes the selected entry from the list. To delete the required entry, select it and press Delete on your keyboard. |
The following terms are used in MedicalDirector Clinical
Respiratory function calculator.
| Term | Description |
|---|---|
| Peak Expiratory Flow Rate (PEFR) | The maximum expiratory flow rate achieved which occurs very early in the forced expiratory process. |
| Forced Expiratory Volume in 1 second (FEV1) | The volume is expired in the first second of maximal expiration after a maximal inspiration. |
| Vital Capacity (VC) | The maximum volume of air that can be exhaled or inspired during either a formed (FVC) or a slow (VC) process. |
| Forced Vital Capacity (FVC) | The maximum volume of air that can be
exhaled or inspired during a formed FVC
process. Tip: The
FER value is
automatically calculated by
tool. |
| FEV1/FVC/ | Represents the FEV1 as a percentage of the FVC (whichever volume is larger) and gives a clinically useful index of airflow limitation. |
| FEF25-75% | Shows the average expired flow over the middle half of the FVC process and is regarded as a more sensitive measure of small airways narrowing than FEV1. But, FEF25-75% has a wide range of normality, is less reproducible than FEV1, and is difficult to interpret if the VC (or FVC) is reduced or increased. |

