Is the lymph node puncture needle useful for the diagnosis of lymph node nuclei?

Lymph node puncture is performed under local anesthesia, so at the beginning, the anesthesia will be painful (similar to a skin test), but not painful during the process, but after the anesthesia effect disappears, the wound will hurt for a day or two. 1. Lymph node puncture. Lymph node puncture to obtain the aspirated fluid to make a smear cytology or pathogenic examination can help diagnose related diseases that cause lymph node enlargement, such as infection (bacteria, virus, fungus, worm), tuberculosis and leukemia, lymphoma, malignant group, metastatic cancer Wait. 2. Operation steps: select the enlarged lymph node suitable for puncture → routinely disinfect the skin and the operator’s finger → fix the lymph node with the index finger and thumb of the left hand → use a 18-19 gauge needle dryer in the right hand to pierce the lymph node along the long axis of the lymph node → Suction forcefully while dialing the needle → remove the device and inflate the needle, then aspirate blood from the needle, spray it onto the smear to make a uniform glass slide, stain for microscopy → cover with sterile gauze after surgery and fix it with tape. 3. Matters needing attention: ①It is best to puncture the front of the iliac, so as to avoid excessive lipids and affect the smear ②If the aspirate cannot be drawn out, the needle can be continuously punctured in different directions ③Pay attention to selecting larger lymph nodes and keeping them away from large blood vessels ④Smear Before paying attention to the characteristics of the extracted material 2. Lymph node biopsy 1. Indications: Lymph node biopsy can not be diagnosed in patients with lymphadenopathy, lymphoma leukemia, malignant group, immunoblastic lymphadenopathy, tuberculosis, tumor metastasis or sarcoidosis should be selected, and lymph node biopsy should be selected. 2. Biopsy site: Generally, swollen lymph nodes are taken. For those with enlarged lymph nodes all over the body, abdominofemoral lymph nodes should be taken as little as possible. 3. The removed lymph nodes should be fixed with 10% formaldehyde or 95% ethanol immediately and sent for examination. So if ask? After handling the above precautions, you will understand!

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