Patient's question:
Because my wife has a genetic disease in her family, she has had several children before, but they all passed away shortly after birth. This time she is pregnant again, and I want to have an amniocentesis done to check if she can carry the baby to term. First, I'd like to find out the cost of an amniocentesis.Doctor's answer:
The cost of amniocentesis varies by region and hospital, ranging from hundreds to thousands of dollars, depending on the patient's specific situation and other factors such as the hospital environment.The process of amniocentesis is as follows:
1. Before the amniocentesis, the pregnant woman can lie down and change positions five times in a row to allow fetal cells in the amniotic fluid to suspend, making it easier to extract more fetal cells for sampling.
2. For suitable pregnant women, the puncture site on the abdomen is determined using ultrasound (in areas with abundant amniotic fluid and no fetal limbs) or the procedure is performed under ultrasound monitoring.
3. The amniotic fluid is centrifuged under sterile conditions. The cap is opened, the supernatant is discarded, and about 1 milliliter of the amniotic fluid is mixed with the cell precipitate to form a cell suspension for genetic testing or cell culture.
4. Using a puncture kit, the puncture site is disinfected according to sterile requirements, a drape is placed, and a needle is used to slowly withdraw 10–20 milliliters of amniotic fluid. The fluid is gently poured along the tube wall into a sterile centrifuge tube, which is then sealed with a sterile cap.
5. For cell culture, the suspension is evenly distributed into prepared culture bottles, sealed with a sterile cap, and placed in a carbon dioxide incubator for growth. The growth is observed under an inverted microscope every few days, and the medium is changed as needed. After 15–20 days, when the cells cover the bottle wall, they can be harvested for chromosome analysis.
6. The 1 milliliter of cell suspension used for genetic testing is placed into a prepared 1.5 milliliter sterile-sealed plastic centrifuge tube. After sealing, it is packed with ice packs along with the pregnant woman's detailed test records and sent to the testing facility. The facility will file the sample and perform genetic testing upon receipt.