Adults 20 years and older should have the cholesterol checked every four to six years. Serum level of Low Density Lipoproteins (LDL) cholesterol, High Density Lipoproteins (HDL) Cholesterol, and triglycerides are commonly tested in primary care setting using a lipid panel. Quantitative levels of lipoproteins and triglycerides contribute toward<unk>  disease risk stratification via models/calculators such as Framingham Risk Score, ACC/AHA Atherosclerotic<unk>  Disease Risk Estimator, and/or Reynolds Risk Scores. These models/calculators may also take into account of family history (heart disease and/or high blood cholesterol), age, gender, Body-Mass-Index, medical history (diabetes, high cholesterol, heart disease), high sensitivity CRP levels, coronary artery calcium score, and ankle-brachial index. The<unk>  stratification further determines what medical intervention may be necessary to decrease the risk of future<unk>  disease. Total cholesterol The combined quantity of LDL and HDL. A total cholesterol of higher than 240mg/dL is abnormal, but medical intervention is determined by the breakdown of LDL and HDL levels. LDL cholesterol LDL, commonly known as "bad cholesterol", is associated with increased risk of<unk>  disease. LDL cholesterol transports cholesterol particles throughout the body, and can build up in the walls of the arteries, making them hard and narrow. LDL cholesterol is produced naturally by the body, but eating a diet high in saturated fat, trans fats, and cholesterol can increase LDL levels. Elevated LDL levels are associated with diabetes, hypertension, hypertriglyceridemia, and atherosclerosis. In a fasting lipid panel, a LDL greater than 160 mg/dL is abnormal. HDL Cholesterol HDL, also known as "good cholesterol", is associated with decreased risk of<unk>  disease. HDL cholesterol carries cholesterol from other parts of the body back to the liver and then removes the cholesterol from the body. It can be affected by acquired or genetic factors, including tobacco use, obesity, inactivity, hypertriglyceridemia, diabetes, high carbohydrate diet, medication side effects (beta-blockers, androgenic steroids, corticosteroids, progestogens, thiazide diuretics, retinoic acid derivatives, oral estrogens, etc.) and genetic abnormalities (mutations ApoA-I, LCAT, ABC1). Low level is defined as less than 40 mg/dL. Triglycerides Triglyceride level is an independent risk factor for<unk>  disease and/or metabolic syndrome. Food intake prior to testing may cause elevated levels, up to 20%. Normal level is defined as less than 150 mg/dL. Borderline high is defined as 150 to 199 mg/dL. High level is between 200 and 499 mg/dL. Greater than 500mg/dL is defined as very high, and is associated with pancreatitis and requires medical treatment. Screening age Health organizations does not have a consensus on the age to begin screening for hyperlipidemia. The CDC recommends cholesterol screenings once between ages 9 and 11, once again between 17 and 21, and every 4 to 6 years in adulthood. Doctors may recommend more frequent screenings for people with a family history of early heart attacks, heart disease, or if a child has obesity or diabetes. USPSTF recommends men older than 35 and women older than 45 to be screened. NCE-ATP III recommends all adults older than 20 to be screened as it may lead potential lifestyle modification that can reduce risks of other diseases. However, screening should be done for those with known CHD or risk-equivalent conditions (e.g. Acute Coronary Syndrome, history of heart attacks, Stable or Unstable angina, Transient ischemic attacks, Peripheral arterial disease of atherosclerotic origins, coronary or other arterial revascularization). Screening frequency Adults 20 years and older should have the cholesterol checked every four to six years, and most screening guidelines recommends testing every 5 years. USPSTF recommends increased frequency for people with elevated risk of CHD, which may be determined using<unk>  disease risk scores.
treatment of Cardiovascular disease
medication of Gastrointestinal bleeding
medication of Peptic ulcer disease
treatment of Gastritis
treatment of Depression 
treatment of Opioid use disorder
treatment of Appendix cancer
treatment of Attention deficit hyperactivity disorder