LH Midstream

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INTRODUCTION
For a Printable Version of Ovulation Test Instructions, please click here.

Luteinizing hormone in elevated quantities causes ovulation. During the menstrual cycle only a small amount of LH is made, but in the middle of the cycle LH briefly increases. This increase is called the "LH surge" and precedes ovulation. Conception is most likely to occur within thirty-six hours following the LH surge. The Midstream Urine LH Ovulation Test is specifically designed to detect your LH surge - the time when you are likely to ovulate. Click to buy ovulation predictor tests.

DETERMINE WHEN TO START TESTING
To determine when to start testing, you must first determine the length of your menstrual cycle. The length of the menstrual cycle is the number of days from the first day of menstrual bleeding to the day before bleeding begins on the next period.

Determine the usual length of the menstrual cycle over the last few months. Then, refer to the Cycle Chart to determine on which day of the menstrual cycle to begin testing. If your cycle is less than twenty-one days or greater than forty days, consult a physician.

Cycle Chart

TEST PROCEDURE
Do not use first morning samples as LH is synthesized in your body early in the morning. It will not show up in urine until later in the day. The best time to test urine is between 11am and 8pm. Be sure to test at the same time each day. Also, reduce your liquid intake (and try not to urinate) around 2 to 3 hours before testing as a diluted liquid sample can hinder LH detection. To Optimize the Use of Testing Products, please visit our online Ovulation Test FAQ.

1. To begin testing, open the sealed pouch by tearing along the notch. Remove test kit from the pouch.

2. Hold the round end of cover with one hand. Use the other hand to pull out the test device and expose the absorbent tip.

3. Point the absorbent tip downward. Place the absorbent tip in urine stream for at least seven to ten (10) seconds to be thoroughly wet. NOTE: Do not allow urine to splash into the result window. To prevent urine from splashing the result window, during application, place your thumb over the interpretation window while holding the test in the urine stream.

4. Re-cap the device, lay flat on a table, and wait for color bands to appear. Depending on the concentration of LH, a positive result may be observed in as few as 40 seconds; however, to confirm negative results, the complete reaction time (10 minutes) is required. It is important the background of the result window is clear before the result is read.

INTERPRETATION OF RESULTS
Lh Mid-Stream Test

Negative - No LH Surge: Only one color band appears on the control (C) region or the test (T) band is much lighter than the control band. There is no LH surge.

Postive - LH Surge: If two color bands are visible and the test (T) band is equal to or darker than the control (C) band, ovulate will probably take place within the next 24-48 hours.

Invalid: No visible band at all. The control band will not appear if an insufficient volume of specimen is added into the test kit. Proper procedures may not have been followed in performing the test. Repeat with a new test kit. Please consult above instructions and follow precisely. *Important Note from Early-Pregnancy-Tests.com Regarding Invalid Test Results: The most common reason for an invalid test result with a midstream test is that urine has splashed into the interpretation window. This prevents liquid from properly “wicking” up the test and through the band of dye. Please note that invalid results can nearly always be avoided by placing your thumb over the interpretation window while holding the test in the urine stream.

QUESTIONS & ANSWERS

1) Should I restrict my diet before taking the test?
No, diet will not affect the test results.

2) Does alcohol, aspirin, or any other common drug affect the test?
No, but some hormonal medications can interfere with test results. If such medications are being taken or are suspected, seek professional advice from a physician to confirm the test results.

3) Should the test be used for contraception?
No, the test is not designed to prevent or help prevent conception and should not be used to do so.

4) Why is first morning urine not a good sample?
If first morning urine is used with the test, the first day of the LH surge may not be detected. The best time to collect the urine is between 11:00 A.M. and 8:00 P.M.. Always try to collect it at about the same time each day.

5) Today's control band is a different shade of red than yesterday's control band. Is this a concern?
No. Variations in the color of the control band will not affect the test result. Always compare the color of the test band to that of the control band of the same device on the day the test is performed. Do not compare bands from different devices.

6) Can test results be interpreted after ten minutes?
Depending on the concentration of LH, a positive result may be observed in as few as 40 seconds; however, to confirm negative results, the complete reaction time (10 minutes) is required. Do not interpret the test after the ten minute reaction time. Discard the used test.

7) A pink background color and vertical streaking appeared in the result area during the testing period. Is this a concern?
No. Each urine sample will vary in its chemical makeup, as will the humidity of the air in testing chamber (room). Such variations in physical conditions can cause the vertical streaking and/or the pink-rose background color but will not affect the test results. As long as the control band appears within five minutes, the test is working properly.

STORAGE AND STABILITY
Store the test kit below 28ºC; do not freeze. Refer to the expiration dates of the individual components for stability information.

WARNINGS AND PRECAUTIONS
1. The test kit is for in vitro (external) diagnostic use only.
2. Do not use beyond the expiration date.