Correct option is B
Sol. Home pregnancy kits work by detecting human chorionic gonadotropin (hCG) hormone in urine. A test is considered positive when two lines appear—one control line and one test line. The presence of both confirms that hCG is present, indicating early pregnancy. Even if the test line is faint, it is usually interpreted as positive. The kits are over 99% accurate when used correctly. Early morning urine is recommended for testing as it has the highest hCG concentration.
Explanation of each option:
· (a) Single line appears – This indicates a negative result. The single visible line is the control line, which confirms the test worked properly, but no pregnancy hormone (hCG) was detected in the urine sample.
· (b) Two lines appear – Correct. The presence of both a control and test line, even faintly, means hCG has been detected and the woman is likely pregnant. Confirmation by a blood test or doctor’s visit is still recommended.
· (c) Two lines where one is not clear appears – Though it may still indicate pregnancy, the unclear or faint test line could result from low hCG levels or a faulty kit. It is best to repeat the test after a couple of days using first-morning urine.
· (d) No band appears – This result indicates a faulty or invalid test. It means that even the control line didn’t appear, which may happen due to incorrect testing method or an expired kit. A new test should be done with a fresh kit.