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作者们介绍应用滤纸法估计鼻腔分泌活性,方法是将两块预先称重的70×12mm的Whatman1号滤纸纵向褶叠成“V”形,底朝下轻轻放入每侧鼻腔下鼻甲上方,以避开鼻泪管开口。患者头微向后仰使泪液流向鼻咽部。10分钟后取出滤纸,放入装有0.8ml无菌生理盐水(其中加入0.1％迭氮化钠)已知重量的玻管中,再称重,如此可计算出鼻分泌物的重量。取样应在进饮食和户外活动至少半小时后,上感后至少两周。取样时间在9至18时之间,因鼻分泌物量昼间变化较小。
The authors describe the application of the filter paper method to estimate nasal secreting activity by longitudinally pleating two pre-weighed 70 × 12 mm Whatman filters into a “V” shape with the bottom gently under each nasal inferior turbinate, To avoid nasolacrimal duct openings. Patient head backward slightly to tear flow to the nasopharynx. After 10 minutes the filter paper was removed and placed in a glass tube containing 0.8 ml of sterile saline (0.1% sodium azide added) of known weight and weighed so that the weight of nasal secretions was calculated. Sampling should be in the diet and outdoor activities at least half an hour after the flu at least two weeks. Sampling time is between 9 and 18 o’clock, due to changes in the amount of nasal secretions less during the day.