Complement 4 Test

Immune system of human body contains proteins called complement. The complement varies from C1 to C9. When a person faces auto immunity disorder, it is necessary to check the regularity of C4 complement proteins. C3 and C4 complements has major role in immune system. A normal human body must contain 0.16 to 0.48 grams of C4 in 1 liter of blood (g/l). Human body shows symptoms when this average disturbed. The average may be different based on age, height and gender. Physician suggests this test when a patient encounters fatigue, puffiness around eyes, Rashes across chin (mostly butterfly shaped rash), swelling in hands and feet, and excessive tiredness.

Physician must know all the details about patient's pill history, Even if it is a prescribed medicine or store bought medicine or even health supplements. Physician must know if the patient is alcoholic too. Technician must understand the patient's health status. Excessive tired person can get dizziness after drawing out blood for test. Fatigue person might vomit after drawing out the blood sample for test. Enough hydration is necessary. Technician must cross check about the patient's test history. Like, if he or she faced excessive bleeding once after drawing out the blood for the test. No fasting is required for this test. Cross check the physician about it.

Higher or lower level of C4 affects the human immunity. Once the above mentioned symptoms arises, it is better to check the C4 level. Progressive loss of C4 loss in blood might end up in

Make the patient seated comfortably. Ask the preliminary questionnaire like hydration and previous medications. Tighten the arm of the patient by an elastic band. Find a vein to draw the blood sample. If the test is taken for children or toddler find the vein in the thigh. Cleanse the vein area with an alcoholic pad. Insert the syringe and draw out enough blood sample for the test. Press a cotton ball against the poked vein to stop excessive blood coming out.