# Hypertriglyceridaemia and Lipoprotein(a) > Hypertriglyceridaemia and lipoprotein(a) for NEET-PG Medicine, covering chylomicronaemia, pancreatitis thresholds, fibrates, omega-3 and Lp(a) as risk enhancer. - Canonical URL: https://prepelephant.com/topics/neet-pg/medicine/hypertriglyceridaemia-and-lipoprotein-a - Exam / course: NEET-PG · Subject: Medicine - Publisher: PrepElephant (https://prepelephant.com) — Prepared and reviewed by the PrepElephant Academic Review Team - First published: 2026-10-14 - Last updated: 2026-10-14 - Reference basis: Harrison's Principles of Internal Medicine; ESC/EAS Guidelines for the Management of Dyslipidaemias - How to cite: "Hypertriglyceridaemia and Lipoprotein(a)", PrepElephant, https://prepelephant.com/topics/neet-pg/medicine/hypertriglyceridaemia-and-lipoprotein-a ## Direct answer Hypertriglyceridaemia is a raised fasting triglyceride level, and its severe form, with levels above about 1000 mg/dL, produces chylomicronaemia and a steep rise in pancreatitis risk. Lipoprotein(a) is a genetically determined LDL-like particle carrying apolipoprotein(a), which raises cardiovascular risk independently of LDL cholesterol. Statins do not meaningfully lower it, so it is measured once and treated as a risk enhancer. ## What you must remember - **Triglyceride bands:** 200 to 499 mg/dL is high, and 500 mg/dL or more is very high, with the cardiovascular and pancreatic risks rising at each step. - **Chylomicronaemia:** triglycerides above about 1000 mg/dL give creamy plasma, eruptive xanthomas and a steep rise in acute pancreatitis risk. - **Familial chylomicronaemia:** a rare recessive disorder from lipoprotein lipase or apolipoprotein C-II deficiency, managed mainly by a very low-fat diet. - **Secondary causes:** uncontrolled diabetes, hypothyroidism, alcohol excess, nephrotic syndrome, oestrogens and retinoids are the first things to check. - **Lipoprotein(a):** apolipoprotein(a) is attached to apolipoprotein B, and a level of 50 mg/dL or more is a risk enhancer that is largely fixed by genetics. - **Statins and Lp(a):** statins do not meaningfully lower lipoprotein(a), while PCSK9 inhibitors lower it only modestly. - **Omega-3 in practice:** added to statins in patients with raised triglycerides to reduce cardiovascular risk, which is an indication to recall rather than a substitute for diet. ## Working up a raised triglyceride A 45-year-old man with type 2 diabetes has a fasting triglyceride of 650 mg/dL and a family history of early heart disease. The approach moves from confirming the value to finding a cause and deciding treatment. 1. **Confirm the fasting level.** Repeat the test after an overnight fast, because a non-fasting sample can read falsely high. 2. **Grade the severity.** Levels of 200 to 499 mg/dL carry cardiovascular risk, while 500 mg/dL and above also raises pancreatitis risk, and levels above about 1000 mg/dL need urgent action. 3. **Search for secondary causes.** Check HbA1c, thyroid function, urine protein and alcohol history, and review drugs such as oestrogens or retinoids. 4. **Choose treatment by level.** Glucose control and diet come first, fibrates are added for moderate to high triglycerides, and very low-fat diet with specialist input is used for chylomicronaemia. 5. **Assess lipoprotein(a) once.** Measure it in adults with premature atherosclerosis or a family history, since it is a lifelong genetic risk marker. ## Where the exam tries to catch you Triglyceride and Lp(a) questions often hinge on a threshold or a drug that does not work, so the traps below focus on those points. - **Trap:** a triglyceride of 650 mg/dL is treated as minor because the LDL is normal. **Correct:** very high triglycerides carry pancreatitis risk and need lowering whatever the LDL level. - **Trap:** statins are expected to lower lipoprotein(a) substantially. **Correct:** statins do not meaningfully reduce lipoprotein(a), so the other risk factors are treated more intensively. - **Trap:** fibrates are expected to cure familial chylomicronaemia. **Correct:** diet remains the mainstay, and fibrates give only limited benefit in that condition. ## Frequently asked questions ### At what triglyceride level does pancreatitis risk rise sharply? Acute pancreatitis risk climbs steeply once fasting triglycerides exceed about 1000 mg/dL, the range in which chylomicronaemia becomes common. Levels of 500 mg/dL and above are classed as very high and also need active lowering. ### What is lipoprotein(a) and why does it matter? Lipoprotein(a) is an LDL-like particle with apolipoprotein(a) attached to apolipoprotein B. Its level is largely determined by genetics, and a value of 50 mg/dL or more is a risk enhancer for atherosclerotic disease. ### Do statins lower lipoprotein(a)? Statins do not meaningfully lower lipoprotein(a), so they cannot correct its risk on their own. PCSK9 inhibitors lower it only modestly, and the wider cardiovascular risk is managed by treating the other risk factors. ### What is familial chylomicronaemia syndrome? Familial chylomicronaemia syndrome is a rare recessive disorder caused by lipoprotein lipase or apolipoprotein C-II deficiency. It presents with very high triglycerides, eruptive xanthomas and recurrent pancreatitis, and it is managed mainly with a very low-fat diet. ### Which secondary causes raise triglycerides? Uncontrolled diabetes, hypothyroidism, alcohol excess, nephrotic syndrome, oestrogen therapy and retinoids all raise triglyceride levels. Correcting the underlying cause is the first step before adding lipid-lowering drugs.