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驗孕棒什么情況下無效 驗孕棒顯示無效的原因剖析(2)

出處：媽媽育兒網(wǎng) 日期：2018-01-10 14:52:07 編輯：婧待花開

5.疾病或者藥物的影響

如果患有某些疾病諸如葡萄胎、支氣管癌等等，是會影響驗孕結(jié)果的，而且，如果長期服用某些藥物，也有可能對檢查的結(jié)果造成錯誤。

6.驗孕產(chǎn)品過期變質(zhì)

驗孕產(chǎn)品過期變質(zhì)就會導(dǎo)致驗孕出錯，所以買的時候要注意保質(zhì)日期。此外，買回來放在家里不要放太久，也要避免潮濕，不然使用的時候就容易出現(xiàn)錯誤了。

驗孕棒顯示無效的原因

驗孕棒正確的使用方法：

1、使用時才將包裝鋁箔膜袋沿缺口處撕開，取出驗孕棒。

2、戴上盒內(nèi)所附的一次性塑料薄膜手套，用大拇指緊捏住驗孕棒手柄一端，將吸尿孔一端朝下方傾斜，注意驗孕棒觀察一邊應(yīng)朝下方，梅花圖案方向朝上方。

3、對準(zhǔn)驗孕棒側(cè)面的吸尿孔撒尿，使尿液穿過吸尿孔，并維持1至2秒鐘的接尿時間。

4、然后翻轉(zhuǎn)驗孕棒將觀察窗朝上方，繼續(xù)斜握著驗孕檢棒，當(dāng)你看到觀察窗上有紫紅色的液體爬過，1分鐘內(nèi)觀察窗就會出現(xiàn)紫紅色線條，懷孕的結(jié)果可以在1分鐘后判讀，未懷孕的結(jié)果須在3分鐘后才能確定。在5分鐘后判讀的結(jié)果無效!任何時間的尿樣都適合驗孕棒做測試。如果在懷孕初期，則用晨尿為最佳。

驗孕棒是通過測尿HCG來判斷的。而HCG真正開始大量分泌是在孕卵著床后，合體滋養(yǎng)細(xì)胞開始分泌才大量產(chǎn)生HCG，而孕卵著床至少需要11天。想通過驗孕棒測試比較準(zhǔn)確的話，就等11天以后再使用驗孕棒測試是否懷孕。

小編的話：需要注意的是，自己在購買驗孕產(chǎn)品時，需要根據(jù)自己的實際情況進(jìn)行選擇。一般建議在月經(jīng)推辭后十天再進(jìn)行測試，如果不確定的話，第二天可以利用晨尿再進(jìn)行復(fù)測。在使用驗孕產(chǎn)品時，最好先閱讀下產(chǎn)品說明書，及如何使用，避免使用錯誤而造成誤判、顯示無效的結(jié)果出現(xiàn)。以上的驗孕棒顯示無效的原因有6個，大家不防仔細(xì)學(xué)習(xí)了解下。

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