How to read the C and T lines on an early pregnancy test strip
Jan 08, 2023
Source: Cainiu Health
Dr. Lv Aiming
Introduction
The end portion where urine is released is called the C zone, and adjacent to the C zone is the T zone. The C zone serves as the control region, while the T zone is the pregnancy test region. If only one red band appears in the control region (C) and no red band appears in the test region (T), it indicates that the person is not pregnant. If two red bands appear—one in the control region (C) and another in the test region (T)—it indicates pregnancy.
Pregnancy test strips are interpreted by checking the C and T areas, and can be used simply by following the instructions. The end where urine is applied is called the C area, and next to it is the T area. The C area serves as the control zone, while the T area is the pregnancy test zone. The specific procedure for using a pregnancy test strip is as follows:
1. Purchase a pregnancy test strip and check whether the outer packaging is damaged or leaking air. If there are no abnormalities, tear open the aluminum foil pouch along the dotted line and remove the pregnancy test strip.
2. Collect the first morning urine in a cup. Dip the white end of the test strip into the urine, ensuring the liquid level does not exceed the marked line. Hold it in the urine for 10 seconds, then lay the strip flat for 1 minute and wait for the appearance of red bands.
3. Read the result within 5 minutes; readings taken after 5 minutes are invalid.
If only one red band appears in the control area (C) and no red band appears in the test area (T), this indicates that the person is not pregnant. If two red bands appear—one in the control area (C) and another in the test area (T)—this indicates pregnancy. To ensure accuracy, it is recommended to visit a正规 hospital for further examination.
