The present study revealed that the apparent anxiety level
in patients who inhaled lavender extract was noticeably
lower than before intervention results and also compared
with control group, especially at the levels of the severe
and highly severe anxiety, so these results were in
agreement with the results reported by Ita, Burns, Zare,
Seraj, Vakilian, Lherner, and Kanaani, due to exposure of
the cases with medicine more than 30 minutes (10-12).
Although, Kicolt believes that undiluted essential oils
should not be used more than 20 minutes due to reduced
sensitivity of olfactory receptors in clinical situations (13).
However, this study was not compatible with Muzarelli
and Graham researches where in Muzarelli survey no
significant difference was observed in apparent anxiety