Respirology : official journal of the Asian Pacific Society of Respirology
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Comparative Study
Comparison between specified percentage and fifth percentile criteria for spirometry interpretation in Thai patients.
The present study was conducted to determine the degree of agreement between the interpretation of spirometry using a specified percentage of predicted value (SPC) and the fifth percentile (FPC) as the cut off between normal and abnormal. ⋯ Interpretation by SPC using cut-off values of 80% predicted for FVC and FEV1 and 65% predicted for FEF25-75% resulted in good agreement with FPC. However, the SPC cut-off values for FEV1/FVC and PEF should be modified to 90% predicted and 65% predicted, respectively.
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Insect stings and subsequent reactions are common occurrences, but life-threatening systemic reactions are rare. Herein, we describe the case of a young man who developed diffuse pulmonary haemorrhage following an insect sting. He had experienced urticarial reactions to insect stings previously. Diffuse pulmonary haemorrhage should be recognized as an uncommon manifestation of severe systemic reaction to insect sting.