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Xu Jun Hui
General Surgery
About me
PhD graduate from the School of Medicine, Wuhan University, main physician, with many years of experience working in a top-tier hospital's general surgery department.
Proficient in diseases
Diagnosis and treatment of liver cancer, cholelithiasis, portal hypertension, breast hyperplasia, breast cancer, thyroid adenoma, gastrointestinal tumors.
Voices
How to administer an injection if the tetanus skin test is negative
A negative tetanus skin test indicates that there is no allergy to tetanus antitoxin, and 1500 to 3000 units of tetanus antitoxin can be directly administered via intramuscular injection in the upper arm or buttock. If the wound is heavily contaminated or the injection is not timely, the dose may be doubled or tripled at discretion, and it is also necessary to clean and dress the wound. The purpose of administering tetanus antitoxin via intramuscular injection is to prevent infection by Clostridium tetani. Therefore, patients with heavily contaminated or deep wounds must receive tetanus antitoxin treatment.
Can appendicitis cause vomiting?
Some patients with appendicitis may experience symptoms such as nausea and vomiting. This is because the appendix is located in the lower right abdomen near the ileocecal area, and the appendix cavity is connected to the cecum. The appendix is an independent organ of the human digestive tract. When inflamed, the inflammation can easily irritate the surrounding intestines, causing intestinal spasms and contractions, leading to nausea and vomiting. A typical manifestation of appendicitis is referred pain in the lower right abdomen. Once appendicitis is diagnosed, it is advisable to promptly start anti-inflammatory treatment and, if necessary, proceed with surgical treatment. Appendicitis can range from acute simple appendicitis, which responds well to conservative anti-inflammatory treatment, to acute suppurative or even perforated appendicitis. In these severe cases, it is recommended to perform surgery as soon as possible to remove the appendix and clear the inflammatory secretions, alongside anti-inflammatory treatment.
How long does a tetanus shot last?
After receiving a tetanus shot, it generally lasts for about six months. However, if you are injured again after six months and the wound is heavily contaminated, such as with contaminated soil or rust, and the wound is large and deep, it is advised to undergo tetanus treatment again. The purpose of the tetanus shot is to prevent infection by Clostridium tetani, which is an anaerobic bacterium. It tends to proliferate in anaerobic environments and in conditions of heavy contamination by rust and soil. Therefore, if after tetanus treatment the injury is relatively minor, shallow, and comparatively clean, it is sufficient to clean and dress the wound and keep it dry. If the wound is heavily contaminated, large, and deep, it is recommended to administer the tetanus shot again.
How to administer a tetanus shot if it is negative?
A negative tetanus needle test indicates that the patient is not allergic to the tetanus antitoxin and can continue with intramuscular injections, typically administered in the upper arm or buttock muscles, in doses ranging from 1000 to 3000 units each time. If the infection is severe or the tetanus injection is not timely, the dosage may be appropriately increased, generally by one to two times. The purpose of administering tetanus antitoxin treatment is to prevent infection by Clostridium tetani, an anaerobic bacterium. For patients with deep wounds or heavily contaminated wounds, such as those contaminated with soil or rust, Clostridium tetani can easily colonize. Therefore, for such patients, it is essential to perform tetanus antitoxin treatment while cleaning and dressing the wound.
Hemorrhoids with bloody stools belong to what type of hemorrhoids?
Hemorrhoids are divided into internal and external hemorrhoids. Bleeding from hemorrhoids generally belongs to internal hemorrhoids or develops into mixed hemorrhoids. Therefore, hemorrhoidal bleeding is due to internal hemorrhoids or mixed hemorrhoids. Hemorrhoids are classified into four degrees: First-degree hemorrhoids do not prolapse. Second-degree hemorrhoids prolapse during defecation when abdominal pressure increases but can retract spontaneously afterward. Third-degree hemorrhoids involve prolapse of the hemorrhoidal tissue that requires manual replacement. Fourth-degree hemorrhoids are incarcerated and cannot be retracted. The treatment of hemorrhoidal bleeding depends on the amount and nature of the bleeding. If it is a small amount of bleeding, conservative treatment is generally sufficient, and the bleeding symptoms will disappear. If the bleeding is significant and persistent, failure to promptly address and surgically treat it may lead to chronic anemia and iron deficiency anemia.
The difference between rectal prolapse and rectal prolapse.
Rectal prolapse, also known as rectal prolapse, is characterized by partial prolapse of the rectal mucosa in the early stages and full-length prolapse of the rectum in the later stages. Early rectal prolapse is generally accompanied by a feeling of incomplete bowel movements, urgency followed by a feeling of incomplete relief, and perianal contact, with secretions leading to perianal eczema, itching, and infection in the later stages. If the prolapse cannot be reduced, entrapment can occur, causing pain. The initial treatment for rectal prolapse is to ensure smooth bowel movements and reduce factors that increase abdominal pressure to avoid causing the rectal mucosa to protrude outward. Severe rectal prolapse may require surgical treatment.
What is the function of a tetanus shot?
A tetanus shot is used to prevent infection by the tetanus bacillus, because certain wounds, such as those that are deep and small or heavily contaminated, are susceptible to colonization by the tetanus bacillus. This bacterium thrives in anaerobic conditions. It typically enters the body through the skin or mucous membranes and produces toxins that cause muscle spasms, a specific type of infection. This often leads to symptoms like lockjaw, spontaneous spasms, and compulsory spasms, commonly affecting the jaw muscles, abdominal muscles, and limbs, and can be life-threatening. Therefore, for wounds that are heavily contaminated, deep, and small, it is essential to administer anti-tetanus treatment.
How long to fast for intestinal obstruction
Intestinal obstruction and the barrier to the passage of intestinal contents can lead to intestinal obstruction, typically characterized by abdominal pain, bloating, cessation of passing gas and stools, and in cases of high intestinal obstruction, it may also involve nausea and vomiting. How long fasting should be continued in the case of intestinal obstruction depends on whether the patient has resumed passing gas and stools, as well as whether symptoms such as abdominal pain, bloating, nausea, and vomiting have subsided. If the patient's abdominal pain and bloating have mostly subsided, passing gas and stools have resumed, and there is no bloody stool or symptoms of nausea and vomiting, then a gradual reintroduction of a liquid diet can be started. If abdominal pain and bloating do not worsen, and there is passing gas and stools, then a transition to a semi-liquid diet until a normal diet is resumed can be made. Therefore, the duration of fasting for intestinal obstruction should be determined based on the effectiveness of the treatment for the obstruction.
Do hemorrhoids bleed and hurt?
Simple hemorrhoids bleeding generally has no pain symptoms. Pain only occurs when the hemorrhoids are inflamed or when there is prolapsed or thrombosed external hemorrhoids. Hemorrhoids are caused by the tortuous dilation of hemorrhoidal venous plexus. Some patients have symptoms of hemorrhoidal prolapse, some have rectal bleeding with fresh blood that is separate from the stool, and a few have both prolapse and bleeding. If the prolapse of hemorrhoids is severe, or if there is a significant amount of bleeding, surgical treatment is recommended. If the bleeding is minor and the hemorrhoids are not severe, conservative treatment can be implemented, including topical medication and maintaining smooth bowel movements. It is advised to avoid alcohol, spicy and irritating foods, and to keep the perianal area clean and hygienic.
Can hemorrhoid suppositories be used for hemorrhoid bleeding?
For hemorrhoid bleeding, if the bleeding is not severe, external hemorrhoid suppositories can be used to compress and stop the bleeding, which can be quite effective. If the hemorrhoid bleeding is heavy and prolonged and the suppository is not effective, hospitalization is required. Intravenous hemostatic drugs or oral hemostatics should be administered, with local gauze compression, and surgery should be performed as soon as possible to definitively stop the bleeding. If the bleeding is due to oral anticoagulants, it may be necessary to consider discontinuing these medications, providing symptomatic support treatment for hemostasis, and surgical treatment if necessary.