Preoperative preparation for percutaneous liver biopsy needle

Measure bleeding time, clotting time, prothrombin time and platelet count.

Check your blood type in case you need a blood transfusion.

Three days before surgery, intramuscular injection of vitamin K, 3-8mg daily.

Train breathing exercises to get the patient's cooperation in the puncture process.

Routine fasting for 2-4 hours before surgery.

One hour before puncture, give sedative and oral chloral hydrate 0.5ml/kg

Prepare the puncture probe, puncture needle, puncture disinfection kit, disinfect ultrasonic coupling agent and tissue fixative (such as 4% formaldehyde, histochemical solution, etc.).

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