Ten things that orthodontists won't tell you [things that doctors didn't tell you before health check]

When you are going to have some health checks, are you worried about discomfort or the accuracy of the checks? Is the medical staff so busy that they forget to inform the patients of the health examination instructions? Clinicians and experts from Prevention magazine and American medical health website jointly provided eight little-known secrets, which can ensure the accuracy of physical examination results and help patients to relieve their nervousness.

★ Please remove nail polish before skin cancer screening.

Chapas, a dermatologist at new york University, pointed out that if nails are painted with bright nail polish, doctors can't see the danger signs of nails, such as cracks or pigmentation.

Dermatologist Lior said that when there is no bruise or fungal infection on the nail, the texture, shape and color of the nail change, such as abnormal proliferation, depression, dark brown markings on the nail bed or long-term warts, which may be signs of skin cancer. If the finger skin turns black, it is likely to be fatal melanoma.

★ Anesthetic ointment can be applied before colposcopy.

The website of "Medical Health" in the United States reported that abnormal cervical smear examination is usually caused by virus infection, such as human papillomavirus (HPV), or bacterial, fungal or trichomonal infection.

Then the doctor will have a colposcopy and carefully examine the vulva, vagina and cervix. Before colposcopy, you can ask a doctor to apply local anesthetic cream to reduce discomfort during examination.

If colposcopy finds the cause of infection, a cervical tissue sample (biopsy) should be taken. After biopsy, vaginal pain lasted for 1 ~ 2 days, and there was a little bleeding or dark liquid in the vagina for 1 week. This is a normal phenomenon, and sanitary napkins can be used. Remember not to have sex for at least 1 week, don't use tampons or directly rinse the vagina, and try not to exercise after 1 day.

★ Have a mammogram in the first week of menstruation.

According to the research of Dr. Migueli Auridi of Seattle Society for Group Health Research, the time of mammography examination will affect the accuracy of examination, and it is the best time to arrange the examination time in 1 week of menstrual period. If it is a premenopausal woman, mammography should be arranged two weeks before menstruation to avoid breast sensitivity caused by hormonal changes.

Don't apply prickly heat powder, deodorant, lotion or perfume on the forearm and chest that day, otherwise it may hinder X-ray photography. Caffeine can increase breast tenderness and should be stopped before examination 1 week. The National Cancer Institute of the United States investigated 44 breast X-ray examination centers and found that the interpretation of X-rays by professional radiologists is helpful to improve the detection rate of cancer.

★ Sit still for 3 minutes before taking blood pressure.

Shaman, an American cardiologist, said that relaxing yourself three minutes before measuring blood pressure can avoid the increase of blood pressure caused by human factors and avoid unnecessary prescriptions for medical treatment. For example, rushing to the clinic after a traffic jam can easily lead to an increase in systolic blood pressure. You might as well sit quietly in the waiting room, browse magazines and take a deep breath to calm your mind.

Avoid drinking coffee before physical examination. Dr. Salmon mentioned that although there is not enough evidence to prove that caffeine can cause long-term hypertension, caffeine may cause short-term hypertension.

★ Colonoscopy is scheduled in the morning.

Generally speaking, colonoscopy is done in the morning, and the detection rate of polyps is high. It may be that doctors are full of energy in the morning, and intestinal preparation is better in the morning. Subjects can clean the intestinal residue or excrement by drinking intestinal cleanser that is difficult to swallow, so that doctors can clearly check the abnormality of colon.

The most difficult thing in colonoscopy is to relieve the discomfort of taking intestinal cleaning agent. Burke, director of the center for colon polyps and cancer prevention at Cleveland Clinic, suggested that patients can ask doctors to prescribe a small dose of intestinal cleanser when preparing their intestines, which is about half of the previous dose. Fractional administration is also a feasible scheme. Studies have shown that taking intestinal cleanser several times the night before the examination and a few hours before the examination day also has a good intestinal cleaning effect, and colon polyps can be clearly found.

★ High-starch diet is strictly prohibited for cholesterol detection.

Experts on the website of "Medical Health" in the United States say that if low-density lipoprotein (LDL), high-density lipoprotein (HDL) and triglyceride are detected, you must fast for 9 ~ 12 hours before blood drawing, and you can't eat anything except water. Don't drink alcohol, exercise excessively or eat fatty food the night before the examination.

If you eat high-starch and high-fat food 3 days before the examination, it may increase the triglyceride value and affect the low-density lipoprotein value. After overeating in continuous holidays, it is not appropriate to arrange a blood lipid test, because the test value will definitely rise, and it is best to wait for a few weeks before doing a cholesterol test.

★ Use gel 2 weeks before cervical smear examination.

Jin Ming, an obstetrician and gynecologist at Yale University, said that women who stop menstruating or vaginal dryness are more likely to feel pain when they receive pap smear. It is suggested that vaginal gel should be used continuously two weeks before examination, three times a week, so as to reduce the discomfort of pap smear examination.

Remember to stop using vaginal gel 3 days before the examination to avoid confusing the examination results. Smear examination outside the menstrual period can make the examination results more accurate.

★ Avoid drinking drinks before MRI.

Qiu Chen, a clinical professor of neurology at Mount Sinai Medical College in the United States, said that magnetic resonance photography itself is easy to cause anxiety and increase the desire to urinate. It is recommended not to drink drinks, especially coffee, before MRI photography 1 hour. In the process of photography, the subject must be still 1 hour or more. If he is interrupted by going to the toilet, he must start over.

If you feel nervous in a closed instrument, you may need some medicine to help you relax. Patients who have just undergone vascular surgery and women with intrauterine devices may not be suitable for MRI photography; Patients with kidney disease or sickle cell anemia should not use contrast media.