Do pregnant women need to fast for urine test?

Pregnancy is a critical stage in every woman's life. During this period, regular checkups and prenatal tests are needed to observe the physical health of the pregnant woman and the development of the fetus. Pregnant women do not need to fast before taking a urine test. Food will not affect the test results of pregnant women. Urine test is a common test for pregnant women. Just prepare the urine and there is no need to fast.

Do pregnant women need to fast for urine test?

Some female friends are influenced by the perception that they need to fast before physical examinations, and always think that fasting is also required for urine tests, blood tests, B-ultrasound tests, and pregnancy tests. But in fact, it is not necessary to fast before a pregnancy test. Food intake will not affect the test results. This conclusion can be drawn from the principles of urine tests, blood tests and B-ultrasound.

Urine pregnancy test is done by detecting the HCG content in urine. Whether or not you have eaten before the test will not have much impact on the test results. But it should be noted that you should not drink too much water before the examination, and you should not avoid drinking too much water the night before the examination. This is to prevent water from diluting the urine and reducing the concentration of HCG in the urine.

If you are taking a blood test for pregnancy, you do not need to fast. A blood pregnancy test determines whether you are pregnant by detecting the HCG level in venous blood. Food and water intake will not affect the HCG level in the blood.

If you use ultrasound to test pregnancy, there is no need to fast. After food is digested through the digestive tract, it will appear in the stomach and other organs. Vaginal B-ultrasound inserts the probe deep into the vagina, while abdominal B-ultrasound targets the uterus, so the intake of food will not affect the test results.

Urinalysis precautions

1. Drinking water and eating do not affect the results of routine urine tests, so pregnant women can eat and drink water before the examination.

2. It is best to collect midstream urine. According to the order of urination, urine can be divided into the front section, middle section and back section. Because the first and second stream urine are easily contaminated, midstream urine is generally collected when doing urine routine and urine bacteriological examinations.

3. Urine should be collected in clean and dry containers, such as the disposable urine cup and urine test tube provided by the hospital.

4. Time of urine collection: Routine laboratory tests can be done at any time when urine is excreted. In order to observe the results before and after, kidney disease patients are generally required to use the first urine sample in the morning for testing.

5. The retained urine should be sent to the laboratory for examination as soon as possible, because if it is left for too long, problems such as glucose being decomposed by bacteria, tubular destruction, and cell lysis may occur, affecting the accuracy of the test results. Therefore, when doing a routine urine test, paying attention to the correct standards for collecting urine samples is the key to ensuring the accuracy of the urine test results.

6. Urine specimens must be clean. Women should clean their vulva to avoid mixing in leucorrhea. If there are a large number of polygonal epithelial cells in the urine sediment, they may have been mixed into the leucorrhea, and it is advisable to collect a clean urine sample for re-examination.

7. In patients with urinary tract infection, pyuria is often intermittent, so it is advisable to conduct repeated examinations before drawing a conclusion.

8. The use of antibiotics may affect the accuracy of the examination. Therefore, pregnant women should stop taking medication before doing a urine test and inform their doctor if they are taking any medication.