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Understanding Positive and Negative Test Results in Health Examinations: A Guide for Patients

[이데일리 이순용 기자] March 5th is Gyeongchip (驚蟄), which means that frogs wake up from their winter sleep. Since ancient times, the frozen water of the Daedong River is said to be released after Rain and Gyeongchip, so it has been considered a time when one can feel spring in full swing. In March, when the spring breeze blows along with Gyeongchip and the warmth of new life sprouts, it is the time to renew the body and mind that had shrunk during the winter and welcome spring in earnest. For this reason, every year in March, when spring begins, the number of people visiting hospitals for health checkups increases.

Mr. A, 40, who set health as his goal this year, also underwent a national health checkup at a nearby hospital in the spring. Ms. A was eligible for cancer screening this year, so she underwent a gastroscopy for the first time in her life. A few days later, she was so shocked to see that the results of a gastroscopy were positive in the test results sheet she received through the mail that she went back to the hospital where she had been tested.

When Mr. A was tested for COVID-19 during the COVID-19 pandemic, he was used to the positive test results that were given to infected people and thought that a positive gastroscopy result had a bad meaning. He had trouble sleeping, wondering if he had cancer. However, after visiting the hospital and consulting, Mr. A was able to reassure himself that he had been mistaken all along.

As with COVID-19, if a pathogen test is conducted to check for infection and the result is higher than a certain level, it is said to be positive for the disease. On the other hand, negative means that there is no reaction or if the level is below a certain level, the test is not infected with the disease.

Blood or urine tests that are basically conducted in the national health checkup are also said to be positive if there is an abnormality, and negative if there is no abnormality. However, the results of stomach and colonoscopy tests are different. When cells in the stomach or colon proliferate abnormally and a lumpy tumor is discovered, a biopsy is performed. If the tissue in question is cancerous, it is expressed as malignant (惡性) using the word 惡, which means bad. On the other hand, if it is not cancerous, it is called benign (良性) using the word yang (良), which means good.

Benign tumors are tumors that do not pose a threat to life, except in a few special cases. However, follow-up observation may be necessary depending on the judgment of the medical staff. On the other hand, malignant tumors are tumors that invade surrounding tissues and endanger life, and can be called cancer.

Positive and negative have different meanings not only in tumors but also in tests to check for the presence of antibodies such as hepatitis B antibodies. If you have antibodies to the virus, you are positive. If you do not have antibodies, you are negative. If you are negative, you do not have antibodies to protect against the disease, so you must get vaccinated.

Daedong Hospital Comprehensive Health Examination Center Manager Kim Yun-mi (family medicine specialist) said, “People often get confused like Mr. A because they usually think that the opposite of negative is positive, but the meaning of negative and positive differs depending on the type and purpose of the test. “He said. She also said, “The national health checkup is a project that contributes to leading a healthy life and improving national health by diagnosing and treating health risk factors and diseases at an early stage, so anyone eligible must participate in the checkup to check their health status and maintain their health.” “I recommend managing it,” he said.

Meanwhile, the health checkups conducted by the government include general health checkups and cancer checkups. General health checkups are conducted once every two years for health insurance workers, heads of local households, household members and dependents aged 20 or older, and medical benefit recipients aged 20 to 64. This year, those born in even-numbered years are eligible, with the exception of non-office workers, who are implemented every year.

Cancer screening is conducted for stomach cancer, breast cancer, colon cancer, liver cancer, and cervical cancer, which are the most common in Korea. For stomach cancer, a gastrointestinal contrast test or gastroscopy is performed every two years for those over 40 years of age, and for colon cancer, a fecal occult blood test is performed every year only for those over 50 years of age. Those who test positive select a colonoscopy or colonic double contrast test. . For liver cancer, liver ultrasound and blood tests are performed every 6 months for those at high risk for liver cancer over the age of 40, once in the first and second half of each year, mammography every 2 years for women over 40, and cervical screening every 2 years for women over 20. You can be screened for breast cancer and cervical cancer through cytology, respectively. In addition, health checkups conducted by the government include health checkups for life transitions with medical benefits, student health checkups, and infant health checkups.

2024-03-04 01:34:10

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