However, the 10% tea tree oil cream doesn't seem to cure the infection. A stronger tea tree oil solution (25% or 50%) is needed for that. Application of 25% or 50% tea tree oil solution appears to both relieve symptoms and clear up the infection in about half of people who try it for 4 weeks.
Vital capacity (VC): the volume change of the lung between a full inspiration and a maximal expiration. 1. The maneuver is performed rather slowly. The vital capacity is assessed during an inspiratory maneuver. Starting from end-tidal volume the subject expires maximally and subsequently makes a full inspiration.
Forced expiratory volume and forced vital capacity are lung function tests that are measured during spirometry. Forced expiratory volume is the most important measurement of lung function.It is used to: 1  Diagnose obstructive lung diseases such as asthma and chronic obstructive pulmonary disease (COPD) .2  A person who has asthma or COPD has a lower FEV1 result than a healthy person.he amount of air exhaled may be measured during the first (FEV1), second (FEV2), and/or third seconds (FEV3) of the forced breath. Forced vital capacity (FVC) is the total amount of air exhaled during the FEV test.