Pre-test preparation or requirements
• At least 12 hr overnight fasting is required before drawing sample in plain vial. Diet before should be routine normal diet not excessive in fats.
Significance of test
Cholesterol levels for adults less than 200 milligrams per deciliter (mg/dL) are considered desirable for adults. A reading between 200 and 239 mg/dL is considered borderline high and a reading of 240 mg/dL and above is considered high.
LDL cholesterol levels should be less than 100 mg/dL. Levels of 100 to 129 mg/dL are acceptable for people with no health issues but may be of more concern for those with heart disease or heart disease risk factors. A reading of 130 to 159 mg/dL is borderline high and 160 to 189 mg/dL is high. A reading of 190 mg/dL or higher is considered very high.
HDL levels should be kept higher. A reading of less than 40 mg/dL is considered a major risk factor for heart disease. A reading from 41 mg/dL to 59 mg/dL is considered borderline low. The optimal reading for HDL levels is of 60 mg/dL or higher. Cholesterol levels for children By comparison, acceptable levels of total cholesterol and LDL cholesterol in children are different. An acceptable range of total cholesterol for a child is less than 170 mg/dL. Borderline high total cholesterol for a child ranges from 170 to 199 mg/dL. Any reading of total cholesterol over 200 in a child is too high.
A child's LDL cholesterol levels should also be lower than an adult's. The optimal range of LDL cholesterol for a child is less than 110 mg/dL. Borderline high is from 110 to 129 mg/dL while high is over 130 mg/dL.
Total cholesterol to HDL ratio would be 1 to 4. Higher ratios mean a higher risk of heart disease. HDL to LDL ratio should be >0.4.