猫狗放腹水一次不超过40ml/KG体重，猫狗放腹水的标准需要根据腹水产生的量决定，一般感觉肚子明显鼓起就需要抽腹水了，每次抽腹水不能全部抽完，一般抽取2/3，抽腹水只是一种治标不治本的方法，目的是减轻猫狗的痛苦，但频繁抽腹水猫狗会十分虚弱消瘦，建议结合其它治疗手段减轻猫狗的痛苦。
狗的腹水是指狗体内腹腔腔隙内的液体增多，引起腹部肿胀，严重时可能会危及狗的生命。对于狗的腹水，是否需要抽完液体，需要视具体情况而定。如果狗的腹水量较大，导致呼吸困难、活动受限或食欲不振，就需要及时到兽医处进行检查和治疗。在兽医的指导下，可能需要进行腹水积液的抽取，以缓解狗的症状。
但需要注意的是，腹水的产生通常是因为身体其他部位出现问题所导致的，因此，只抽取腹水而不治疗根源问题，是治标不治本的做法。如果狗患有肝病、心脏病、恶性肿瘤等疾病引起的腹水，应当针对疾病进行治疗。在治疗期间，还应该注意狗的饮食、营养和休息，促进身体的恢复和康复。
Dogs are one of the most popular pets in the world. They are known for their loyalty, intelligence, and friendly nature. Dogs come in many different breeds, each with their own unique characteristics.
One of the most popular breeds is the Labrador Retriever. They are known for their friendly and outgoing personalities, and are often used as service dogs. Another popular breed is the German Shepherd, which is known for their intelligence and loyalty. They are often used as police dogs or as guard dogs.
Dogs are also great companions for people of all ages. They are known to reduce stress and anxiety, and can even help lower blood pressure. They are also great for families with children, as they are patient and protective.
Taking care of a dog requires a lot of responsibility. They need to be fed, exercised, and given regular check-ups at the vet. They also need to be trained and socialized properly to ensure they are well-behaved and obedient.
In conclusion, dogs are wonderful pets that bring joy and companionship to many people. They are loyal, intelligent, and friendly, and make great companions for people of all ages.