LH Ovulation Test Kit - Midstream


OVA-CHEK (Ovulation (LH) Test) is a self-performing immunoassay designed for the qualitative determination of Luteinizing Hormone (LH) in urine for detection of ovulation. This product is in the format of midstream. This is packed and sealed in aluminum foil bags to ensure its validity before its expiration.

Luteinizing Hormone (LH) is a glycoprotein hormone secreted by Basophilia cell of the anterior pituitary. The main function of LH in females is to promote ovulation. During the reproductive years, a healthy female produces an ovum almost every month; and a surge in the LH level indicates an impending ovulation. Ova-Check enables a woman to monitor an impending ovulation. A woman, who is desirous of conceiving, can engage in sexual intercourse or artificial insemination during the period when the test result is positive to increase the chances of conception.

The method employs a unique combination of monoclonal dye conjugate and polyclonal-solid phase antibodies to selectively identify the LH in the test samples with an extremely high degree of sensitivity. In less than 10 minutes, levels of LH as low as 5mIU/ml can be detected.

As the test sample flows through the absorbent device, the labeled antibody-dye conjugate binds to the LH forming an antibody-antigen complex. If hLH is present in the sample, a pink-purple colored band with a specific antibody-LH colored immunogold conjugate complex will form on the test band region. On the other hand, a light color band will always appear at the control region. This control band serves as a reference of the color intensity of about 25mIU/ml LH. When the intensity of the test band is equal to or stronger than that of the control/reference band, the test result is positive, indicating that the LH surge is likely in progress.

Intended Use

OVA-CHEK is used for the prediction of ovulation.

Instructions for use

Determine the beginning time of Test:

The bearing aged women should first make sure of menstrual cycle before the test that is to take the first day of last menstrual cycle as the beginning of a period. Since the days of menstrual cycle of each female are different, one can consult the listed time in periodical testing form, and take it as the first day of test. One should chose a period for the test, compare the results of the test after continuous testing for 5 days or until the maximum of LH appears, and find out LH surge level to forecast the ovulation period. If the menstrual cycle is less than 21 days or more than 38 days, one should take tests according to the enjoin of doctor.

Menstrual Cycle — Beginning Time of Testing

21-22 days    The 6th day

23-24 days    The 7th day

25 days         The 8th day

26 days         The 9th day

27 days         The 10th day

28 days         The 11th day

29 days         The 12th day

30 days         The 13th day

31 days         The 14th day

32 days         The 15th day

33 days         The 16th day

34 days         The 17th day

35 days         The 18th day

36 days         The 19th day

37 days         The 20th day

38 days          The 21st day

Test Procedure

Before the use prepare a timer:

Interpretation of results

Positive: Two pink/purple bands form, and the color of the test band is equal to or more intense than that of the control/reference band. This result indicates an LH surge level of the tested specimen.

Negative: One pink/purple band forms in the control region; no band is found in the test region, or the colour of the test band is less intense than that of the control/reference band. The result indicates basal LH level of the tested specimen.

Invalid: If there is no pink/purple band in the control region, the test result is invalid. Retest the sample using a new device.

Warning and Precautions

For In Vitro Diagnostic use only

Packaging Presentation

Ova-Chek Kit is packed in an aluminium pouch with desiccant. Each such pouch is packed in a box with operating instruction.