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In this video tutorial, the presenter demonstrates how to use pregnancy test droppers with urine samples. The top dropper contains urine from the presenter, who is pregnant and has HCG in her urine, while the bottom dropper contains urine from her husband, which should not have HCG. They add three drops of urine to each test and wait three minutes to interpret the results. It's emphasized that results should not be read after five minutes as they would be invalid. After three minutes, both tests show a line in the control areas, indicating that enough urine was added and the tests are functioning properly.