Routine blood examination is one of the most basic and commonly used blood tests in medicine, by examining the number, shape and proportion of various cells in the blood, doctors can obtain important information about the patient's health.
Red blood cells, white blood cells, and platelets are the three key indicators in a routine blood test. Routine blood examination is not only widely used in the diagnosis and treatment of various diseases, but also one of the basic tests that must be performed before many surgeries and treatments. It can provide doctors with the current physiological state of the patient and provide an important basis for formulating a reasonable treatment plan.
With the rapid development of modern medicine, routine blood examination has been automated and intelligent, which has greatly improved the accuracy and efficiency of detection.
However, as patients, we still need to understand the basic knowledge and significance of routine blood tests, so as to better cooperate with doctors' diagnosis and treatment, and jointly maintain our health.
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01
Can a blood routine detect cancer?
The main indicators of routine blood testing include red blood cells, white blood cells, and platelets, and changes in these indicators can reflect certain disease states in the body.
For example, an elevated white blood cell count may indicate infection or inflammation, while a decrease in red blood cells may be associated with a disorder such as anemia. Although these changes reflect the health of the body to a certain extent, they do not directly diagnose cancer.
Cancer is a complex disease whose occurrence and progression involve the interaction of multiple factors. Although some cancer types may cause changes in routine blood count, these changes are often nonspecific and not sufficient to confirm the diagnosis of cancer. Therefore, routine blood tests alone cannot directly detect cancer.
Of course, routine blood tests still have a certain reference value in the diagnosis of cancer. It can provide doctors with information about the overall health of the patient, helping to rule out some diseases that are not related to cancer. At the same time, abnormalities in routine blood results may also prompt doctors to further cancer screening or diagnosis.
In summary, although blood routine cannot directly detect cancer, it still plays a certain role in the diagnosis of cancer. By comprehensively analyzing routine blood results and other clinical information, doctors can have a more comprehensive understanding of the patient's health and provide strong support for the early detection and treatment of cancer.
02
The doctor admits that if the 3 indicators are elevated, it may need to be paid attention to
First of all, if the white blood cell count is significantly elevated in the blood test, it is often a sign that our body may be suffering from infection or inflammation.
White blood cells are the body's guardians, and when the body is threatened by external pathogens, they multiply rapidly to fight infection. Therefore, an elevated white blood cell count may be a warning from the body that we need to take timely action.
Second, elevated hemoglobin and hematocrit are also of concern. These two indicators are closely related to our circulatory system.
If their values are outside the normal range, it can mean that our blood has increased viscosity and increased resistance to blood flow, which may increase the risk of cardiovascular disease. Therefore, we cannot ignore the unusual changes in these indicators.
Finally, an elevated platelet count is also a cause for concern. Platelets play a key role in the blood clotting process, but if they are in too many places, they can lead to the formation of blood clots, which can increase the risk of serious diseases such as stroke and heart disease.
03
What should patients do to prepare for routine blood tests?
First, patients should make sure they are well rested before the test. Factors such as fatigue and lack of sleep can affect blood composition, which in turn can affect the accuracy of test results. Therefore, patients are advised to get enough sleep the night before the exam and stay awake in the morning on the day of the exam.
Secondly, diet is also one of the important factors that affect the results of routine blood tests. To avoid disturbance of blood components by food intake, patients should remain fasting until the test.
It is usually recommended not to eat for at least 10-12 hours after dinner the night before the test to ensure the stability of blood components. At the same time, patients should also avoid drinking plenty of water before the examination to avoid thinning the blood and affecting the results of the examination.
In addition, patients should try to avoid strenuous exercise before the examination. Strenuous exercise can cause the heart to beat faster and blood circulation to increase the blood circulation, which can affect the blood routine index. Therefore, patients are advised to avoid strenuous exercise and remain calm the day before the examination.
Finally, patients should be in a good state of mind before the examination. Nervousness and anxiety can affect blood components, leading to biased test results. Therefore, patients should adjust their mindset and remain relaxed and optimistic before the examination to ensure the accuracy of the examination results.
04
How is cancer detected?
First, the doctor will make a preliminary judgment and screening based on the patient's medical history, symptoms and signs. In this process, doctors may use basic clinical examination methods such as questioning, palpation, and auscultation to gather information about the patient.
Next, the doctor may recommend a series of laboratory tests, such as blood routine, urine routine, biochemical tests, etc., to understand the patient's overall health and whether there are any abnormal indicators. These tests can help detect some potential signs of cancer, such as abnormally elevated tumor markers.
In addition to laboratory tests, imaging tests are also an important means of cancer detection. Commonly used imaging tests include X-ray, CT, MRI, and ultrasound. These techniques enable non-invasive observation of the patient's body, revealing the presence, location, and size of the tumor, as well as the presence or absence of metastases.
When cancer is suspected, doctors may also recommend a histopathological examination, in which a sample biopsy is taken to obtain a sample of diseased tissue for microscopic observation and diagnosis. This is the gold standard for diagnosing cancer, and it can accurately determine the type, degree of differentiation and degree of malignancy of the tumor.
In addition, with the continuous advancement of medical technology, some new cancer detection methods are gradually applied to clinical practice. For example, genetic testing can detect whether a patient has a cancer-related genetic mutation, providing a basis for individualized treatment and prevention. Immunohistochemistry can assess the patient's immune status and provide guidance for immunotherapy.