什么是网状细胞计数？
Reticulocytes are immature red blood cells. A reticulocyte count is a test your doctor can use to measure the level of reticulocytes in your blood. It’s also known as a retic count, corrected reticulocyte count, or reticulocyte index.
网状细胞计数可以帮助您的医生学习如果您的骨髓产生足够的红细胞。如果您的红细胞计数太低或过高，您的身体将尝试通过生产和释放或多或少的网状细胞来实现更好的平衡。您的医生可以通过订购网状细胞计数来判断您的身体是否正在创造和释放它们。
网状细胞计数可以帮助您的医生诊断各种条件，例如贫血和骨髓衰竭。他们可能会订购额外的测试以发展他们的诊断。
如果他们想要了解骨髓如何运作，您的医生可能会建议网状细胞计数，包括生产足够的红细胞。它们还可以订购网状细胞计数以帮助诊断和区分不同类型的贫血。
They may also use it to help monitor your progress and health after you undergochemotherapy,放射治疗, abone marrow transplant, or treatment foriron deficiency anemia.
进行网状细胞计数，您的医生需要收集您的血液样本，以发送到测试实验室。
Your doctor may ask you to take certain steps to prepare for drawing your blood. For example, they may ask you to fast for a specific period of time beforehand. They may ask you to avoid eating anything, drinking anything, or both. They also may ask you to avoid taking certain medications beforehand, such asblood thinners.
如果您应该采取任何措施准备血液绘制，请咨询您的医生。告诉他们，如果你有血友病事先晕厥或任何其他医疗条件的历史。您还应告诉他们您服用的任何药物，包括处方和超额药物。
Your doctor, nurse, or technician will draw a sample of your blood for testing. They’ll likely take it from a vein in your inner elbow or the back of your hand.
First, they’ll sterilize the area with an antiseptic. Then, they’ll wrap a plastic band around your arm to apply pressure and help your vein swell with blood. They’ll insert a sterile needle into your vein and use it to collect a sample of your blood in an attached vial.
Once they’ve collected enough blood, they’ll remove the needle and untie the plastic band from your arm. Then they’ll clean the injection site and, if necessary, bandage it.
他们将把你的血液样本送到实验室进行测试。您的医生会在您的测试结果时通知您。
Infants and young children
For infants or young children, the testing process may be different. Rather than use a needle to collect their blood, your child’s doctor may make a small cut in their skin. When the cut starts to bleed, they will use a test strip or slide to collect a small sample of your child’s blood. Then they’ll clean the area and, if necessary, bandage it.
Alternative testing methods
在某些情况下，您可能不需要让血液绘制。相反，一个简单的手指刺可以足够了。在这种情况下，您的医生将用针刺手指。当它开始流血时，它们将使用测试条或滑动以收集血液的样本。然后，他们会清理该地区，如果需要，请绷带手指。
Blood draws are common procedures. They’re generally safe for most people, but they do involve some risks.
You may experience mild to moderate pain from the needle prick. If your doctor, nurse, or technician has trouble collecting a blood sample, they may need to inject you with the needle several times. It’s common for the injection site to throb afterwards. Some bleeding and bruising are also common.
In rare cases, you may experience other side effects, such as:
- fainting
- excessive bleeding at the puncture site
- accumulation of blood under your skin, known as a hematoma
- 开发针刺刺穿皮肤的感染
- inflammation of your vein, known as phlebitis
您的医生可以帮助您了解您绘制血液的潜在利益和风险。对于大多数人来说，潜在的好处超过了风险。
正常水平的网状细胞因人们血液中的实验室程序和血红蛋白水平而变化。您的医生可能需要订购其他测试以帮助解释您的网状细胞计数。
The results are reported as the percentage of reticulocytes divided by the total number of red blood cells times 100. The reference range, or healthy range, of the reticulocyte percentage in adults is 0.5 percent to 1.5 percent.
High reticulocyte levels could be a sign of:
- 急性出血
- chronic blood loss
- hemolytic anemia
- erythroblastosis fetalis，也称为新生儿中的溶血性，这是一种影响一些胎儿和新生儿的潜在致命的血液疾病
- kidney disease
Low reticulocyte levels could indicate:
- iron deficiency anemia
- 再生障碍性贫血
- 叶酸缺乏
- 维生素B-12缺乏症
- bone marrow failure caused by drug toxicity, infection, or cancer
- kidney disease
- 肝硬化
- side effects from radiation therapy
请您的医生了解有关您的测试结果的更多信息。他们可以帮助您了解结果的意思。他们还可以推荐适当的后续步骤，该步骤可能包括额外的测试或治疗方法。