Final answer:
MRC3 (Medical Readiness Category 3) is a medical assessment tool and it consists of Maximum Voluntary Ventilation (MVV), Slow Vital Capacity (SVC), Total Lung Capacity (TLC), Functional Residual Capacity (FRC), Residual Volume (RV) and possibly an additional element for Reserves/NG based on specific clinical profile.
Step-by-step explanation:
The MRC3 (Medical Readiness Category 3) is an assessment tool used to determine the health status and medical readiness of military personnel. It consists of several key tests and measurements that ascertain the functioning of the respiratory system. For Reserves and National Guard, an additional element is added making it seven elements in total. Here are the 6-7 elements that comprise MRC3:
- Maximum voluntary ventilation (MVV): This measures the greatest amount of air a person can breathe in and out during one minute.
- Slow vital capacity (SVC): SVC quantifies the maximal volume of air that can be expelled from the lungs after a maximum inhalation, measured at a controlled slow rate.
- Total lung capacity (TLC): TLC is the total volume of air present in lungs at the end of a maximal inspiration.
- Functional residual capacity (FRC): FRC measures the amount of air remaining in the lungs after a normal exhalation.
- Residual volume (RV): This is the volume of air still remaining in the respiratory passages and lungs after a maximal expiration.
The seventh element typically used in the Reserve/NG is often specific to the soldier's clinical profile and may vary based on additional considerations or requirements.
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